fix queue bug

src/components/queue/QueueTray.tsx

@@ -87,6 +87,7 @@ import { QueueSheetHandle } from './QueueSheetHandle';
 import {
   VIRTUAL_QUEUE_PAGE_SIZE,
   isCurrentVirtualQueueRequest,
+  isVirtualQueueWaitingForTracks,
   mergeVirtualQueueTracks,
   nextVirtualQueuePageStart,
   seedVirtualQueueTracks,
@@ -390,7 +391,17 @@ export const QueueTray = memo(function QueueTray({ onClose, embedded = false }:
     if (embedded || listPaintedRef.current) {
       void loadVirtualPage(true);
     } else {
-      resetVirtualTracks();
+      const state = resetVirtualTracks();
+      if (
+        state
+        && isVirtualQueueWaitingForTracks(
+          virtualTracksRef.current.length,
+          state.activePosition,
+          state.totalCount,
+        )
+      ) {
+        void loadVirtualPage(false);
+      }
     }
   }, [
     embedded,
@@ -912,7 +923,14 @@ export const QueueTray = memo(function QueueTray({ onClose, embedded = false }:
   );
 
   const queueReady = hasSnapshot;
-  const isLoadingQueue = !queueReady;
+  const isLoadingQueue = !queueReady || (
+    virtualState !== null
+    && isVirtualQueueWaitingForTracks(
+      entries.length,
+      virtualState.activePosition,
+      virtualState.totalCount,
+    )
+  );
 
   const listExtraData = useMemo(
     () => ({ editMode, selectedKeys: visibleSelectedKeys, queueReady }),

src/components/queue/virtualQueuePaging.test.mts

@@ -4,6 +4,7 @@ import {
   VIRTUAL_QUEUE_PAGE_SIZE,
   VIRTUAL_QUEUE_PREFETCH_ROWS,
   isCurrentVirtualQueueRequest,
+  isVirtualQueueWaitingForTracks,
   mergeVirtualQueueTracks,
   nextVirtualQueuePageStart,
   seedVirtualQueueTracks,
@@ -65,6 +66,12 @@ test('stops paging at the virtual queue end', () => {
   assert.equal(nextVirtualQueuePageStart([], 5, 6), null);
 });
 
+test('loads an empty virtual seed immediately when tracks remain', () => {
+  assert.equal(isVirtualQueueWaitingForTracks(0, 5, 10), true);
+  assert.equal(isVirtualQueueWaitingForTracks(1, 5, 10), false);
+  assert.equal(isVirtualQueueWaitingForTracks(0, 9, 10), false);
+});
+
 test('rejects stale generations and replaced playback sessions', () => {
   assert.equal(isCurrentVirtualQueueRequest(4, 4, 'session-a', 'session-a'), true);
   assert.equal(isCurrentVirtualQueueRequest(3, 4, 'session-a', 'session-a'), false);

src/components/queue/virtualQueuePaging.ts

@@ -64,6 +64,22 @@ export function nextVirtualQueuePageStart(
   return start < totalCount ? start : null;
 }
 
+/**
+ * Break the empty-list mount deadlock: when the playback window has no usable
+ * upcoming rows but the virtual context still has tracks, paging cannot wait
+ * for FlashList's first paint because an empty list may never report one.
+ */
+export function isVirtualQueueWaitingForTracks(
+  visibleTrackCount: number,
+  activePosition: number,
+  totalCount: number,
+): boolean {
+  return (
+    visibleTrackCount === 0
+    && nextVirtualQueuePageStart([], activePosition, totalCount) !== null
+  );
+}
+
 export function shouldPrefetchVirtualQueue(
   lastVisibleIndex: number,
   loadedCount: number,