diff --git a/frontend/src/App.tsx b/frontend/src/App.tsx
index ebf3e75..251496a 100644
--- a/frontend/src/App.tsx
+++ b/frontend/src/App.tsx
@@ -1314,20 +1314,28 @@ export default function App() {
   // surface the error — used by the startup retry, since the logbook DB (a remote
   // MySQL especially) can take a few seconds to connect while the UI is already
   // mounted, and we don't want to flash "db not available" during that window.
+  const refreshSeqRef = useRef(0); // guards against an older refresh clobbering a newer one's data
   const refresh = useCallback(async (silent = false): Promise<boolean> => {
+    // Monotonic guard: two refreshes can be in flight at once (e.g. the immediate
+    // one after a UDP auto-log, which reads the QSO at "R", and the debounced one
+    // after extsvc:uploaded, which reads it at "Y"). MySQL query latency can make
+    // the OLDER one resolve LAST and clobber the newer data — the Club Log status
+    // flicking R→Y→R. Only the most-recently-issued refresh is allowed to apply.
+    const seq = ++refreshSeqRef.current;
     try {
       const f = buildActiveFilter();
       const list = await ListQSOFiltered(f as any);
       const n = await CountQSO();
       const hasFilter = !!(f.quick_callsign || (f.conditions && f.conditions.length));
       const matched = hasFilter ? await CountQSOFiltered(f as any) : n;
+      if (seq !== refreshSeqRef.current) return true; // a newer refresh superseded us — drop this stale result
       setQsos(list);
       setTotal(n);
       setMatchCount(matched);
       setError('');
       return true;
     } catch (e: any) {
-      if (!silent) setError(String(e?.message ?? e));
+      if (!silent && seq === refreshSeqRef.current) setError(String(e?.message ?? e));
       return false;
     }
   }, [buildActiveFilter]);