diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 4154a7ddd1f..99b10bec713 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -38,8 +38,8 @@ jobs:
             artifacts_path: build/*.deb
             artifacts_slug: ubuntu-jammy
             qt_qpa_platform: offscreen
-          - name: macOS 12 x64
-            os: macos-12
+          - name: macOS 13 x64
+            os: macos-13
             cmake_args: >-
               -DBULK=ON
               -DCOREAUDIO=ON
@@ -62,8 +62,8 @@ jobs:
             artifacts_path: build/*.dmg
             artifacts_slug: macos-macosintel
             qt_qpa_platform: offscreen
-          - name: macOS 12 arm64
-            os: macos-12
+          - name: macOS 13 arm64
+            os: macos-13
             cmake_args: >-
               -DBULK=ON
               -DCOREAUDIO=ON
@@ -332,8 +332,17 @@ jobs:
 
       - name: "Package"
         if: matrix.cpack_generator != null
-        run: cpack -G ${{ matrix.cpack_generator }} -V
-        working-directory: build
+        # Use retry loop to work around a race condition on macOS causing
+        # 'Resource busy' errors with 'hdiutil'. See
+        # https://github.com/actions/runner-images/issues/7522
+        uses: nick-fields/retry@v3
+        with:
+          timeout_minutes: 30
+          max_attempts: 12
+          retry_wait_seconds: 1
+          command: |
+            cd build
+            cpack -G ${{ matrix.cpack_generator }} -V
 
       - name: "[Ubuntu] Import PPA GPG key"
         if: startsWith(matrix.os, 'ubuntu') && env.RRYAN_AT_MIXXX_DOT_ORG_GPG_PRIVATE_KEY != null
diff --git a/src/library/autodj/autodjprocessor.cpp b/src/library/autodj/autodjprocessor.cpp
index 84327bfe8f4..068efd0329d 100644
--- a/src/library/autodj/autodjprocessor.cpp
+++ b/src/library/autodj/autodjprocessor.cpp
@@ -906,20 +906,23 @@ TrackPointer AutoDJProcessor::getNextTrackFromQueue() {
     }
 
     while (true) {
-        TrackPointer nextTrack = m_pAutoDJTableModel->getTrack(
-            m_pAutoDJTableModel->index(0, 0));
+        TrackPointer pNextTrack = m_pAutoDJTableModel->getTrack(
+                m_pAutoDJTableModel->index(0, 0));
 
-        if (nextTrack) {
-            if (nextTrack->getFileInfo().checkFileExists()) {
-                return nextTrack;
+        if (pNextTrack) {
+            if (pNextTrack->getFileInfo().checkFileExists()) {
+                return pNextTrack;
             } else {
-                // Remove missing song from auto DJ playlist.
+                // Remove missing track from auto DJ playlist.
+                qWarning() << "Auto DJ: Skip missing track" << pNextTrack->getLocation();
                 m_pAutoDJTableModel->removeTrack(
                         m_pAutoDJTableModel->index(0, 0));
+                // Don't "Requeue" missing tracks to avoid andless loops
+                maybeFillRandomTracks();
             }
         } else {
             // We're out of tracks. Return the null TrackPointer.
-            return nextTrack;
+            return pNextTrack;
         }
     }
 }
diff --git a/src/sources/soundsource.cpp b/src/sources/soundsource.cpp
index 772c21e2f8e..dc92ac7f7fa 100644
--- a/src/sources/soundsource.cpp
+++ b/src/sources/soundsource.cpp
@@ -59,7 +59,11 @@ QString SoundSource::getTypeFromFile(const QFileInfo& fileInfo) {
     // type, using the generic type application/octet-stream as a fallback.
     // This might also occur for missing files as seen on Qt 5.12.
     if (!mimeType.isValid() || mimeType.isDefault()) {
-        qInfo() << "Unable to detect MIME type from file" << fileInfo.filePath();
+        if (fileInfo.exists()) {
+            qInfo() << "Unable to detect MIME type from file" << fileInfo.filePath();
+        } else {
+            qInfo() << "Unable to detect MIME type from not existing file" << fileInfo.filePath();
+        }
         mimeType = QMimeDatabase().mimeTypeForFile(
                 fileInfo, QMimeDatabase::MatchExtension);
         if (!mimeType.isValid() || mimeType.isDefault()) {
diff --git a/src/sources/soundsourceproxy.cpp b/src/sources/soundsourceproxy.cpp
index 8a7a5742b1e..8091e7fe988 100644
--- a/src/sources/soundsourceproxy.cpp
+++ b/src/sources/soundsourceproxy.cpp
@@ -656,6 +656,13 @@ SoundSourceProxy::UpdateTrackFromSourceResult SoundSourceProxy::updateTrackFromS
     mixxx::TrackMetadata trackMetadata =
             m_pTrack->getMetadata(&sourceSyncStatus);
 
+    if (sourceSyncStatus == mixxx::TrackRecord::SourceSyncStatus::Undefined) {
+        kLogger.warning()
+                << "Unable to update track from missing or inaccessible file"
+                << getUrl().toString();
+        return UpdateTrackFromSourceResult::NotUpdated;
+    }
+
     // Save for later to replace the unreliable and imprecise audio
     // properties imported from file tags (see below).
     const auto preciseStreamInfo = trackMetadata.getStreamInfo();
diff --git a/src/track/trackrecord.cpp b/src/track/trackrecord.cpp
index 84329b65cbd..55868647e9e 100644
--- a/src/track/trackrecord.cpp
+++ b/src/track/trackrecord.cpp
@@ -151,6 +151,12 @@ TrackRecord::SourceSyncStatus TrackRecord::checkSourceSyncStatus(
         // 37 don't have a synchronization time stamp.
         return SourceSyncStatus::Unknown;
     }
+    if (!fileInfo.exists()) {
+        kLogger.warning()
+                << "Failed to obtain synchronization time stamp for not existing file"
+                << mixxx::FileInfo(fileInfo);
+        return SourceSyncStatus::Undefined;
+    }
     const QDateTime fileSourceSynchronizedAt =
             MetadataSource::getFileSynchronizedAt(fileInfo.toQFile());
     if (!fileSourceSynchronizedAt.isValid()) {