src/renderer/src/components/downloadBar/useDownloadBar.ts

@@ -281,11 +281,11 @@ export function useDownloadBar(): DownloadBarController {
     playlist === null &&
     probeError === null
 
-  function clearProbe(): void {
-    setInfo(null)
-    setProbeError(null)
-    setFormatId('')
-    setPlaylist(null)
+  // Per-entry format state is keyed by playlist position, so it must be dropped
+  // any time the playlist itself is dropped or re-fetched -- otherwise a stale
+  // exact-format pick from a prior probe can silently reattach to a different
+  // video that lands at the same index in the new result.
+  function resetPlaylistItemState(): void {
     setSelected(new Set())
     setItemKinds({})
     setFormatExpanded(new Set())
@@ -295,6 +295,14 @@ export function useDownloadBar(): DownloadBarController {
     setFormatProbeError({})
   }
 
+  function clearProbe(): void {
+    setInfo(null)
+    setProbeError(null)
+    setFormatId('')
+    setPlaylist(null)
+    resetPlaylistItemState()
+  }
+
   // Reset the whole bar after a download / playlist is enqueued: clear the URL +
   // probe and drop the one-shot overrides (trim / schedule / advanced / incognito /
   // per-download options) so the next download starts from the global defaults.
@@ -387,6 +395,7 @@ export function useDownloadBar(): DownloadBarController {
     setProbeError(null)
     setInfo(null)
     setPlaylist(null)
+    resetPlaylistItemState()
     // Probing may switch the URL to the format-picker path, changing the command.
     setCommandPreview(null)
     try {