diff --git a/android/src/workspace/tiles/DesktopTile.tsx b/android/src/workspace/tiles/DesktopTile.tsx
index 3ed2959..fce9d4b 100644
--- a/android/src/workspace/tiles/DesktopTile.tsx
+++ b/android/src/workspace/tiles/DesktopTile.tsx
@@ -26,6 +26,7 @@ const DesktopTile: React.FC<Props> = ({ projectId, focused }) => {
   const [shot, setShot] = useState<{ name: string; b64: string } | null>(null);
 
   const load = useCallback(() => {
+    if (!projectId) { setVms([]); setErr(''); setLoading(false); return; }
     setLoading(true); setErr('');
     brainApi.listProjectVms(projectId)
       .then(r => setVms(r.vms || []))
@@ -82,6 +83,8 @@ const DesktopTile: React.FC<Props> = ({ projectId, focused }) => {
           <ActivityIndicator color="#0096FF" style={{ marginTop: 20 }} />
         ) : err ? (
           <Text style={styles.err}>{err}</Text>
+        ) : !projectId ? (
+          <Text style={styles.empty}>Kein aktives Projekt — wechsle in ein Projekt für dessen VMs.</Text>
         ) : vms.length === 0 ? (
           <Text style={styles.empty}>
             Noch keine VM in diesem Projekt.{'\n'}
diff --git a/android/src/workspace/tiles/FilesTile.tsx b/android/src/workspace/tiles/FilesTile.tsx
index 76354e8..52f41f8 100644
--- a/android/src/workspace/tiles/FilesTile.tsx
+++ b/android/src/workspace/tiles/FilesTile.tsx
@@ -43,6 +43,7 @@ const FilesTile: React.FC<Props> = ({ projectId, focused }) => {
   const [previewBusy, setPreviewBusy] = useState('');
 
   const load = useCallback(() => {
+    if (!projectId) { setFiles([]); setErr(''); setLoading(false); return; }
     setLoading(true); setErr('');
     brainApi.listProjectFiles(projectId)
       .then(r => setFiles((r.files || []).slice().sort((a, b) => a.path.localeCompare(b.path))))
@@ -88,7 +89,7 @@ const FilesTile: React.FC<Props> = ({ projectId, focused }) => {
         ) : err ? (
           <Text style={styles.err}>{err}</Text>
         ) : files.length === 0 ? (
-          <Text style={styles.empty}>Noch keine Dateien in diesem Projekt.</Text>
+          <Text style={styles.empty}>{!projectId ? 'Kein aktives Projekt — wechsle in ein Projekt für dessen Dateien.' : 'Noch keine Dateien in diesem Projekt.'}</Text>
         ) : (
           files.map(f => (
             <TouchableOpacity key={f.path} onPress={() => open(f)} style={styles.row} disabled={previewBusy === f.path}>