@@ -1221,6 +1221,7 @@ export function NewTaskDraftScreen(props: {
   );
 
   async function handleStart(): Promise<void> {
+    if (submitNavigationAction !== null) return;
     if (voiceInput.blocksSubmission || pendingPastedTextAttachmentCountRef.current > 0) return;
     const selectedProject = flow.selectedProject;
     const draftKey = flow.draftKey;
@@ -1414,6 +1415,7 @@ export function NewTaskDraftScreen(props: {
     isIncomingShareReady &&
     !isImportingShare &&
     !flow.submitting &&
+    submitNavigationAction === null &&
     pendingPastedTextAttachmentCount === 0 &&
     !voiceInput.blocksSubmission &&
     !(flow.workspaceMode === "worktree" && !flow.selectedBranchName);
@@ -1459,7 +1461,9 @@ export function NewTaskDraftScreen(props: {
         // Focusing is a user action, so presenting the form sheet has one motion.
         autoFocus={false}
         // Clipboard imports use the editor's read-only mode to retain keyboard focus.
-        editable={!isIncomingShareTransferPending && !flow.submitting}
+        editable={
+          !isIncomingShareTransferPending && !flow.submitting && submitNavigationAction === null
+        }
         readOnly={voiceInput.freezesEditor}
         multiline
         scrollEnabled