diff --git a/renderer/app.js b/renderer/app.js
index efa8e92..92e632e 100644
--- a/renderer/app.js
+++ b/renderer/app.js
@@ -1141,7 +1141,14 @@ const _collatorSimple = new Intl.Collator('de');
 // Dynamic keys (status/speed/progress) AND size (which goes 0 → actual when
 // previews resolve / upload starts) are recomputed each call — otherwise a
 // queue sorted by size during previews would be stuck in all-zeros order.
-let _queueSortCache = { sig: '', result: [] };
+//
+// CRITICAL: the cache also tracks jobsRef (identity of the queueJobs array) so
+// that a full replacement (e.g. backup import, queue restore) invalidates the
+// cache. Length alone can match across a replace and would otherwise pin the
+// renderer to stale job references — the UI freezes showing old statuses even
+// though queueJobs itself has fresh objects. Observed as "upload runs in
+// status bar but all rows stay 'Bereit'" after importing a backup.
+let _queueSortCache = { sig: '', result: [], jobsRef: null };
 const _STATIC_SORT_KEYS = new Set(['filename', 'host']);
 
 function sortQueueJobs(jobs) {
@@ -1149,7 +1156,9 @@ function sortQueueJobs(jobs) {
   const factor = direction === 'asc' ? 1 : -1;
   const canCache = _STATIC_SORT_KEYS.has(key);
   const sig = canCache ? `${key}|${direction}|${jobs.length}` : '';
-  if (sig && _queueSortCache.sig === sig) return _queueSortCache.result;
+  if (sig && _queueSortCache.sig === sig && _queueSortCache.jobsRef === jobs) {
+    return _queueSortCache.result;
+  }
 
   const sorted = jobs.slice().sort((a, b) => {
     let cmp = 0;
@@ -1161,7 +1170,7 @@ function sortQueueJobs(jobs) {
     else if (key === 'progress') cmp = (a.progress || 0) - (b.progress || 0);
     return cmp * factor;
   });
-  if (sig) _queueSortCache = { sig, result: sorted };
+  if (sig) _queueSortCache = { sig, result: sorted, jobsRef: jobs };
   return sorted;
 }