diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 833d7bf..c3b1fa5 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -39,7 +39,7 @@ jobs:
     - name: Upload artifact
       uses: actions/upload-artifact@v4.3.1
       with:
-        name: intro-skipper-${{ github.sha }}.dll
+        name: ConfusedPolarBear.Plugin.IntroSkipper-${{ env.GIT_HASH }}.dll
         path: ConfusedPolarBear.Plugin.IntroSkipper/bin/Debug/net6.0/ConfusedPolarBear.Plugin.IntroSkipper.dll
         if-no-files-found: error
 
diff --git a/.gitignore b/.gitignore
index 6908286..bc18978 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,4 +8,3 @@ docker/dist
 
 # Visual Studio
 .vs/
-UpgradeLog*.htm
diff --git a/ConfusedPolarBear.Plugin.IntroSkipper/Analyzers/ChapterAnalyzer.cs b/ConfusedPolarBear.Plugin.IntroSkipper/Analyzers/ChapterAnalyzer.cs
index 1474d74..dd2b2cf 100644
--- a/ConfusedPolarBear.Plugin.IntroSkipper/Analyzers/ChapterAnalyzer.cs
+++ b/ConfusedPolarBear.Plugin.IntroSkipper/Analyzers/ChapterAnalyzer.cs
@@ -96,6 +96,11 @@ public class ChapterAnalyzer : IMediaFileAnalyzer
             config.MaximumIntroDuration :
             config.MaximumEpisodeCreditsDuration;
 
+        if (chapters.Count == 0)
+        {
+            return null;
+        }
+
         if (mode == AnalysisMode.Credits)
         {
             // Since the ending credits chapter may be the last chapter in the file, append a virtual
@@ -104,66 +109,119 @@ public class ChapterAnalyzer : IMediaFileAnalyzer
             {
                 StartPositionTicks = TimeSpan.FromSeconds(episode.Duration).Ticks
             });
+
+            // Check all chapters in reverse order, skipping the virtual chapter
+            for (int i = chapters.Count - 2; i >= 0; i--)
+            {
+                var current = chapters[i];
+                var next = chapters[i + 1];
+
+                if (string.IsNullOrWhiteSpace(current.Name))
+                {
+                    continue;
+                }
+
+                var currentRange = new TimeRange(
+                    TimeSpan.FromTicks(current.StartPositionTicks).TotalSeconds,
+                    TimeSpan.FromTicks(next.StartPositionTicks).TotalSeconds);
+
+                var baseMessage = string.Format(
+                    CultureInfo.InvariantCulture,
+                    "{0}: Chapter \"{1}\" ({2} - {3})",
+                    episode.Path,
+                    current.Name,
+                    currentRange.Start,
+                    currentRange.End);
+
+                if (currentRange.Duration < minDuration || currentRange.Duration > maxDuration)
+                {
+                    _logger.LogTrace("{Base}: ignoring (invalid duration)", baseMessage);
+                    continue;
+                }
+
+                // Regex.IsMatch() is used here in order to allow the runtime to cache the compiled regex
+                // between function invocations.
+                var match = Regex.IsMatch(
+                    current.Name,
+                    expression,
+                    RegexOptions.None,
+                    TimeSpan.FromSeconds(1));
+
+                if (!match)
+                {
+                    _logger.LogTrace("{Base}: ignoring (does not match regular expression)", baseMessage);
+                    continue;
+                }
+
+                matchingChapter = new(episode.EpisodeId, currentRange);
+                _logger.LogTrace("{Base}: okay", baseMessage);
+                break;
+            }
         }
-
-        // Check all chapters
-        for (int i = 0; i < chapters.Count - 1; i++)
+        else
         {
-            var current = chapters[i];
-            var next = chapters[i + 1];
-
-            if (string.IsNullOrWhiteSpace(current.Name))
+            // Check all chapters
+            for (int i = 0; i < chapters.Count - 1; i++)
             {
-                continue;
+                var current = chapters[i];
+                var next = chapters[i + 1];
+
+                if (string.IsNullOrWhiteSpace(current.Name))
+                {
+                    continue;
+                }
+
+                var currentRange = new TimeRange(
+                    TimeSpan.FromTicks(current.StartPositionTicks).TotalSeconds,
+                    TimeSpan.FromTicks(next.StartPositionTicks).TotalSeconds);
+
+                var baseMessage = string.Format(
+                    CultureInfo.InvariantCulture,
+                    "{0}: Chapter \"{1}\" ({2} - {3})",
+                    episode.Path,
+                    current.Name,
+                    currentRange.Start,
+                    currentRange.End);
+
+                if (currentRange.Duration < minDuration || currentRange.Duration > maxDuration)
+                {
+                    _logger.LogTrace("{Base}: ignoring (invalid duration)", baseMessage);
+                    continue;
+                }
+
+                // Regex.IsMatch() is used here in order to allow the runtime to cache the compiled regex
+                // between function invocations.
+                var match = Regex.IsMatch(
+                    current.Name,
+                    expression,
+                    RegexOptions.None,
+                    TimeSpan.FromSeconds(1));
+
+                if (!match)
+                {
+                    _logger.LogTrace("{Base}: ignoring (does not match regular expression)", baseMessage);
+                    continue;
+                }
+
+                if (!string.IsNullOrWhiteSpace(next.Name))
+                {
+                    // Check for possibility of overlapping keywords
+                    var overlap = Regex.IsMatch(
+                        next.Name,
+                        expression,
+                        RegexOptions.None,
+                        TimeSpan.FromSeconds(1));
+
+                    if (overlap)
+                    {
+                        continue;
+                    }
+                }
+
+                matchingChapter = new(episode.EpisodeId, currentRange);
+                _logger.LogTrace("{Base}: okay", baseMessage);
+                break;
             }
-
-            var currentRange = new TimeRange(
-                TimeSpan.FromTicks(current.StartPositionTicks).TotalSeconds,
-                TimeSpan.FromTicks(next.StartPositionTicks).TotalSeconds);
-
-            var baseMessage = string.Format(
-                CultureInfo.InvariantCulture,
-                "{0}: Chapter \"{1}\" ({2} - {3})",
-                episode.Path,
-                current.Name,
-                currentRange.Start,
-                currentRange.End);
-
-            if (currentRange.Duration < minDuration || currentRange.Duration > maxDuration)
-            {
-                _logger.LogTrace("{Base}: ignoring (invalid duration)", baseMessage);
-                continue;
-            }
-
-            // Regex.IsMatch() is used here in order to allow the runtime to cache the compiled regex
-            // between function invocations.
-            var match = Regex.IsMatch(
-                current.Name,
-                expression,
-                RegexOptions.None,
-                TimeSpan.FromSeconds(1));
-
-            if (!match)
-            {
-                _logger.LogTrace("{Base}: ignoring (does not match regular expression)", baseMessage);
-                continue;
-            }
-
-            // Check for possibility of overlapping keywords
-            var overlap = Regex.IsMatch(
-                next.Name,
-                expression,
-                RegexOptions.None,
-                TimeSpan.FromSeconds(1));
-
-            if (overlap)
-            {
-                continue;
-            }
-
-            matchingChapter = new(episode.EpisodeId, currentRange);
-            _logger.LogTrace("{Base}: okay", baseMessage);
-            break;
         }
 
         return matchingChapter;
diff --git a/ConfusedPolarBear.Plugin.IntroSkipper/Configuration/PluginConfiguration.cs b/ConfusedPolarBear.Plugin.IntroSkipper/Configuration/PluginConfiguration.cs
index 76e5896..06384eb 100644
--- a/ConfusedPolarBear.Plugin.IntroSkipper/Configuration/PluginConfiguration.cs
+++ b/ConfusedPolarBear.Plugin.IntroSkipper/Configuration/PluginConfiguration.cs
@@ -103,7 +103,7 @@ public class PluginConfiguration : BasePluginConfiguration
     /// Gets or sets the regular expression used to detect ending credit chapters.
     /// </summary>
     public string ChapterAnalyzerEndCreditsPattern { get; set; } =
-        @"(^|\s)(Credits?|Ending)(\s|$)";
+        @"(^|\s)(Credits?|ED|Ending)(\s|$)";
 
     // ===== Playback settings =====
 
diff --git a/ConfusedPolarBear.Plugin.IntroSkipper/Configuration/configPage.html b/ConfusedPolarBear.Plugin.IntroSkipper/Configuration/configPage.html
index c4bc9a1..67010ea 100644
--- a/ConfusedPolarBear.Plugin.IntroSkipper/Configuration/configPage.html
+++ b/ConfusedPolarBear.Plugin.IntroSkipper/Configuration/configPage.html
@@ -454,33 +454,17 @@
                             <input style="width:4em" type="number" min="0" id="editRightEpisodeStart"> to
                             <input style="width:4em;margin-bottom:10px" type="number" min="0" id="editRightEpisodeEnd">
                             <br />
+                            <br />
 
                             <button id="btnUpdateTimestamps" type="button">
                                 Update timestamps
                             </button>
                             <br />
-                            <br />
                         </div>
 
                         <textarea id="timestampError" style="display:none;" rows="2" cols="75" readonly></textarea>
                         <br />
 
-                        <button id="btnEraseSeasonTimestamps" type="button" style="display:none;">
-                            Erase all timestamps for this season
-                        </button>
-                        <hr />
-
-                        <button id="btnEraseIntroTimestamps">
-                            Erase all introduction timestamps (globally)
-                        </button>
-                        <br />
-
-                        <button id="btnEraseCreditTimestamps">
-                            Erase all end credits timestamps (globally)
-                        </button>
-                        <br />
-                        <br />
-
                         <h3>Fingerprint Visualizer</h3>
                         <p>
                             Interactively compare the audio fingerprints of two episodes. <br />
@@ -526,11 +510,27 @@
                         <br />
                         <br />
 
-                        <canvas id="troubleshooter"></canvas>
+                        <canvas id="troubleshooter" style="display:none;"></canvas>
                         <span id="timestampContainer">
                             <span id="timestamps"></span> <br />
                             <span id="intros"></span>
                         </span>
+                        <br />
+                        <br />
+
+                        <button id="btnEraseSeasonTimestamps" type="button" style="display:none;">
+                            Erase all timestamps for this season
+                        </button>
+                        <hr />
+
+                        <button id="btnEraseIntroTimestamps">
+                            Erase all introduction timestamps (globally)
+                        </button>
+                        <br />
+
+                        <button id="btnEraseCreditTimestamps">
+                            Erase all end credits timestamps (globally)
+                        </button>
                     </details>
                 </fieldset>
             </div>
@@ -602,6 +602,7 @@
             var txtSuggested = document.querySelector("span#suggestedShifts");
             var btnSeasonEraseTimestamps = document.querySelector("button#btnEraseSeasonTimestamps");
             var timestampError = document.querySelector("textarea#timestampError");
+            var timestampEditor = document.querySelector("#timestampEditor");
             var btnUpdateTimestamps = document.querySelector("button#btnUpdateTimestamps");
             var timeContainer = document.querySelector("span#timestampContainer");
 
@@ -613,8 +614,8 @@
 
             async function autoSkipChanged() {
               if (autoSkip.checked) {
-                skipFirstEpisode.style.display = 'block';
-                autoSkipNotificationText.style.display = 'block';
+                skipFirstEpisode.style.display = 'unset';
+                autoSkipNotificationText.style.display = 'unset';
               } else {
                 skipFirstEpisode.style.display = 'none';
                 autoSkipNotificationText.style.display = 'none';
@@ -633,8 +634,8 @@
                 showAdjustment.style.display = 'none';
                 hideAdjustment.style.display = 'none';
               } else {
-                showAdjustment.style.display = 'block';
-                hideAdjustment.style.display = 'block';
+                showAdjustment.style.display = 'unset';
+                hideAdjustment.style.display = 'unset';
               }
             }
 
@@ -716,7 +717,7 @@
 
                 clearSelect(selectEpisode1);
                 clearSelect(selectEpisode2);
-                btnSeasonEraseTimestamps.style.display = "block";
+                btnSeasonEraseTimestamps.style.display = "unset";
 
                 let i = 1;
                 for (let episode of episodes) {
@@ -742,20 +743,29 @@
                 Dashboard.showLoadingMsg();
 
                 timestampError.value = "";
+                canvas.style.display = "none";
 
                 lhs = await getJson("Intros/Episode/" + selectEpisode1.value + "/Chromaprint");
                 rhs = await getJson("Intros/Episode/" + selectEpisode2.value + "/Chromaprint");
 
-                if (lhs === undefined) {
+                if (lhs === null) {
+                    timestampError.value += "Error: " + selectEpisode1.value + " fingerprints missing!\n";
+                }
+                else if (lhs === undefined) {
                     timestampError.value += "Error: " + selectEpisode1.value + " fingerprints failed!\n";
                 }
+
+                if (rhs === null) {
+                    timestampError.value += "Error: " + selectEpisode2.value + " fingerprints missing!\n";
+                }
                 if (rhs === undefined) {
                     timestampError.value += "Error: " + selectEpisode2.value + " fingerprints failed!";
                 }
+
                 if (timestampError.value == "") {
                     timestampError.style.display = "none";
                 } else {
-                    timestampError.style.display = "block";
+                    timestampError.style.display = "unset";
                 }
 
                 Dashboard.hideLoadingMsg();
@@ -785,7 +795,7 @@
                 }
 
                 // Update the editor for the first and second episodes
-                document.querySelector("#timestampEditor").style.display = "unset";
+                timestampEditor.style.display = "unset";
                 document.querySelector("#editLeftEpisodeTitle").textContent = leftEpisode.text;
                 document.querySelector("#editLeftEpisodeStart").value = Math.round(leftEpisodeIntro.IntroStart);
                 document.querySelector("#editLeftEpisodeEnd").value = Math.round(leftEpisodeIntro.IntroEnd);
@@ -805,6 +815,9 @@
             function clearSelect(select) {
                 timestampError.value = "";
                 timestampError.style.display = "none";
+                timestampEditor.style.display = "none";
+                timeContainer.style.display = "none";
+                canvas.style.display = "none";
                 let i, L = select.options.length - 1;
                 for (i = L; i >= 0; i--) {
                     select.remove(i);
@@ -842,12 +855,16 @@
 
                 switch (e.key) {
                     case "ArrowDown":
-                        // if the control key is pressed, shift LHS by 10s. Otherwise, shift by 1.
-                        offsetDelta = e.ctrlKey ? 10 / 0.128 : 1;
+                        if (timestampError.value != "") {
+                            // if the control key is pressed, shift LHS by 10s. Otherwise, shift by 1.
+                            offsetDelta = e.ctrlKey ? 10 / 0.128 : 1;
+                        }
                         break;
 
                     case "ArrowUp":
-                        offsetDelta = e.ctrlKey ? -10 / 0.128 : -1;
+                        if (timestampError.value != "") {
+                            offsetDelta = e.ctrlKey ? -10 / 0.128 : -1;
+                        }
                         break;
 
                     case "ArrowRight":
diff --git a/ConfusedPolarBear.Plugin.IntroSkipper/Configuration/visualizer.js b/ConfusedPolarBear.Plugin.IntroSkipper/Configuration/visualizer.js
index 75b2b5a..b4c7401 100644
--- a/ConfusedPolarBear.Plugin.IntroSkipper/Configuration/visualizer.js
+++ b/ConfusedPolarBear.Plugin.IntroSkipper/Configuration/visualizer.js
@@ -169,6 +169,8 @@ function paintFingerprintDiff(canvas, fp1, fp2, offset) {
         return;
     }
 
+    canvas.style.display = "unset";
+
     let leftOffset = 0, rightOffset = 0;
     if (offset < 0) {
         leftOffset -= offset;
diff --git a/ConfusedPolarBear.Plugin.IntroSkipper/ConfusedPolarBear.Plugin.IntroSkipper.csproj b/ConfusedPolarBear.Plugin.IntroSkipper/ConfusedPolarBear.Plugin.IntroSkipper.csproj
index 254bf30..86ac372 100644
--- a/ConfusedPolarBear.Plugin.IntroSkipper/ConfusedPolarBear.Plugin.IntroSkipper.csproj
+++ b/ConfusedPolarBear.Plugin.IntroSkipper/ConfusedPolarBear.Plugin.IntroSkipper.csproj
@@ -2,8 +2,8 @@
   <PropertyGroup>
     <TargetFramework>net6.0</TargetFramework>
     <RootNamespace>ConfusedPolarBear.Plugin.IntroSkipper</RootNamespace>
-    <AssemblyVersion>0.1.16.0</AssemblyVersion>
-    <FileVersion>0.1.16.0</FileVersion>
+    <AssemblyVersion>0.1.16.1</AssemblyVersion>
+    <FileVersion>0.1.16.1</FileVersion>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
     <Nullable>enable</Nullable>
diff --git a/ConfusedPolarBear.Plugin.IntroSkipper/FFmpegWrapper.cs b/ConfusedPolarBear.Plugin.IntroSkipper/FFmpegWrapper.cs
index 95779e6..26a9f75 100644
--- a/ConfusedPolarBear.Plugin.IntroSkipper/FFmpegWrapper.cs
+++ b/ConfusedPolarBear.Plugin.IntroSkipper/FFmpegWrapper.cs
@@ -605,6 +605,25 @@ public static class FFmpegWrapper
             Encoding.UTF8).ConfigureAwait(false);
     }
 
+    /// <summary>
+    /// Remove a cached episode fingerprint from disk.
+    /// </summary>
+    /// <param name="episodeId">Episode to remove from cache.</param>
+    /// <param name="mode">Analysis mode.</param>
+    public static void DeleteEpisodeCache(string episodeId, AnalysisMode mode)
+    {
+        var cachePath = Path.Join(
+            Plugin.Instance!.FingerprintCachePath,
+            episodeId);
+
+        if (mode == AnalysisMode.Credits)
+        {
+            cachePath += "-credits";
+        }
+
+        File.Delete(cachePath);
+    }
+
     /// <summary>
     /// Determines the path an episode should be cached at.
     /// This function was created before the unified caching mechanism was introduced (in v0.1.7).
diff --git a/manifest.json b/manifest.json
index 6a3e2ff..c131344 100644
--- a/manifest.json
+++ b/manifest.json
@@ -8,6 +8,14 @@
         "category": "General",
         "imageUrl": "https://raw.githubusercontent.com/jumoog/intro-skipper/master/images/logo.png",
         "versions": [
+            {
+                "version": "0.1.16.1",
+                "changelog": "- See the full changelog at [GitHub](https://github.com/jumoog/intro-skipper/blob/master/CHANGELOG.md)\n",
+                "targetAbi": "10.8.4.0",
+                "sourceUrl": "https://github.com/jumoog/intro-skipper/releases/download/v0.1.16.1/intro-skipper-v0.1.16.1.zip",
+                "checksum": "d8e5370f974bd5624206f87b3fed05bb",
+                "timestamp": "2024-03-06T10:17:25Z"
+            },
             {
                 "version": "0.1.16.0",
                 "changelog": "- See the full changelog at [GitHub](https://github.com/jumoog/intro-skipper/blob/master/CHANGELOG.md)\n",