diff --git a/admin/inertia/components/ZimUploader/index.tsx b/admin/inertia/components/ZimUploader/index.tsx
index a734c0f..7f08398 100644
--- a/admin/inertia/components/ZimUploader/index.tsx
+++ b/admin/inertia/components/ZimUploader/index.tsx
@@ -16,6 +16,16 @@ export default function ZimUploader({ onUploadComplete, existingFilenames }: Zim
     existingFilenamesRef.current = existingFilenames
   }, [existingFilenames])
 
+  // Keep the latest callback in a ref so the Uppy lifecycle effect below does
+  // not depend on it. The parent passes a new inline function on every render,
+  // and if that identity were in the effect deps, a re-render mid-upload (e.g.
+  // a window-focus refetch) would tear down and `uppy.destroy()` the instance,
+  // aborting the in-flight upload.
+  const onUploadCompleteRef = useRef(onUploadComplete)
+  useEffect(() => {
+    onUploadCompleteRef.current = onUploadComplete
+  }, [onUploadComplete])
+
   const [uppy] = useState(() =>
     new Uppy({
       restrictions: {
@@ -53,9 +63,17 @@ export default function ZimUploader({ onUploadComplete, existingFilenames }: Zim
         }
       }
     }
-    const handleComplete = (result: { successful: Array<{ response?: { body?: { added?: number } } }> }) => {
+    const handleComplete = (result: {
+      successful: Array<{ response?: { body?: { added?: number } } }>
+      failed: Array<unknown>
+    }) => {
+      // Uppy emits `complete` even when uploads fail or are aborted. Only treat
+      // the run as a success when nothing failed — otherwise leave the uploader
+      // open so the Dashboard can surface the error instead of closing it with a
+      // false "Upload complete" toast.
+      if (result.failed.length > 0) return
       const added = result.successful.reduce((sum, f) => sum + (f.response?.body?.added ?? 0), 0)
-      onUploadComplete(added)
+      onUploadCompleteRef.current(added)
     }
     uppy.on('file-added', handleFileAdded)
     uppy.on('complete', handleComplete)
@@ -64,7 +82,7 @@ export default function ZimUploader({ onUploadComplete, existingFilenames }: Zim
       uppy.off('complete', handleComplete)
       uppy.destroy()
     }
-  }, [uppy, onUploadComplete])
+  }, [uppy])
 
   return (
     <Dashboard
diff --git a/admin/inertia/pages/settings/zim/index.tsx b/admin/inertia/pages/settings/zim/index.tsx
index 8dacf78..23dc53d 100644
--- a/admin/inertia/pages/settings/zim/index.tsx
+++ b/admin/inertia/pages/settings/zim/index.tsx
@@ -30,6 +30,7 @@ export default function ZimPage() {
   const { data, isLoading } = useQuery<ZimFileWithMetadata[]>({
     queryKey: ['zim-files'],
     queryFn: getFiles,
+    refetchOnWindowFocus: false,
   })
 
   async function getFiles() {
diff --git a/admin/package-lock.json b/admin/package-lock.json
index fe48e34..0a18db6 100644
--- a/admin/package-lock.json
+++ b/admin/package-lock.json
@@ -35,6 +35,7 @@
         "@uppy/core": "5.2.0",
         "@uppy/dashboard": "5.1.0",
         "@uppy/react": "5.1.1",
+        "@uppy/xhr-upload": "5.2.0",
         "@vinejs/vine": "3.0.1",
         "@vitejs/plugin-react": "4.7.0",
         "autoprefixer": "10.5.0",
@@ -4589,7 +4590,6 @@
       "cpu": [
         "arm64"
       ],
-      "dev": true,
       "license": "Apache-2.0 AND MIT",
       "optional": true,
       "os": [
@@ -4606,7 +4606,6 @@
       "cpu": [
         "x64"
       ],
-      "dev": true,
       "license": "Apache-2.0 AND MIT",
       "optional": true,
       "os": [
@@ -4623,7 +4622,6 @@
       "cpu": [
         "arm"
       ],
-      "dev": true,
       "license": "Apache-2.0",
       "optional": true,
       "os": [
@@ -4716,7 +4714,6 @@
       "cpu": [
         "arm64"
       ],
-      "dev": true,
       "license": "Apache-2.0 AND MIT",
       "optional": true,
       "os": [
@@ -4733,7 +4730,6 @@
       "cpu": [
         "ia32"
       ],
-      "dev": true,
       "license": "Apache-2.0 AND MIT",
       "optional": true,
       "os": [
@@ -4750,7 +4746,6 @@
       "cpu": [
         "x64"
       ],
-      "dev": true,
       "license": "Apache-2.0 AND MIT",
       "optional": true,
       "os": [