diff --git a/app/sovran_systemsos_web/server.py b/app/sovran_systemsos_web/server.py
index 58d88c2..9695032 100644
--- a/app/sovran_systemsos_web/server.py
+++ b/app/sovran_systemsos_web/server.py
@@ -950,6 +950,12 @@ async def api_features_toggle(req: FeatureToggleRequest):
 
     await loop.run_in_executor(None, _write_hub_overrides, features, nostr_npub)
 
+    # Clear the old rebuild log so the frontend doesn't pick up stale results
+    try:
+        open(REBUILD_LOG, "w").close()
+    except OSError:
+        pass
+
     # Start the rebuild service
     await asyncio.create_subprocess_exec(
         "systemctl", "reset-failed", REBUILD_UNIT,
diff --git a/app/sovran_systemsos_web/static/app.js b/app/sovran_systemsos_web/static/app.js
index ddcd132..d3d93ef 100644
--- a/app/sovran_systemsos_web/static/app.js
+++ b/app/sovran_systemsos_web/static/app.js
@@ -543,7 +543,8 @@ function openRebuildModal() {
   if ($rebuildSave) $rebuildSave.style.display = "none";
   if ($rebuildClose) $rebuildClose.disabled = true;
   $rebuildModal.classList.add("open");
-  startRebuildPoll();
+  // Delay first poll slightly to let the rebuild service start and clear stale log
+  setTimeout(startRebuildPoll, 1500);
 }
 
 function closeRebuildModal() {