The WebDAV server was narrowed to serve only backups/ (to stop exposing .env), but the receiver still pulls /backups, /chat-history and /uploads, so every sync failed with "directory not found". Serve the app root filtered with --include to just those three folders; everything else (.env, source, config/key files) returns 404. Sync Now now saves the typed source IP/port before pulling, since the pull reads the saved config. stop-app.sh also frees port 8080: kill -9 on the backend orphans the rclone child, which then keeps the port with stale settings. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>