diff --git a/frontend/src/components/FileExplorer.tsx b/frontend/src/components/FileExplorer.tsx
index 2f4e537..cff0025 100644
--- a/frontend/src/components/FileExplorer.tsx
+++ b/frontend/src/components/FileExplorer.tsx
@@ -2157,7 +2157,7 @@ export default function FileExplorer({ onLogout }: FileExplorerProps) {
                       />
                     </div>
                     {batch.error && (
-                      <div className="text-[10px] mt-2 line-clamp-3" style={{ color: 'var(--color-danger)' }}>
+                      <div className="text-[10px] mt-2 break-all" style={{ color: 'var(--color-danger)' }}>
                         {batch.error}
                       </div>
                     )}
diff --git a/frontend/src/lib/api.ts b/frontend/src/lib/api.ts
index eef78d2..7d3413e 100644
--- a/frontend/src/lib/api.ts
+++ b/frontend/src/lib/api.ts
@@ -244,6 +244,7 @@ class ApiClient {
     return new Promise((resolve, reject) => {
       const upload = new tus.Upload(file, {
         endpoint: `${API_BASE}/api/tus/`,
+        resume: false,
         chunkSize: 5 * 1024 * 1024, // 5MB chunks bypass Next.js 10MB proxy limit
         retryDelays: [0, 3000, 5000, 10000, 20000],
         metadata: {