Stuck on “Setting up workspace” in Project IDX with Flutter project. Getting 502 Bad Gateway and 404 Not Found errors in F12 console (URL: https://firebase-zayna-flutter-1747342698494.cluster-3gc7bglotjgwuxlqpiut7yyqt4.cloudworkstations.dev/env/msg). Using Flutter 3.32.0-0.2.pre, Dart 3.8.0-278.1.beta, and unstable Nix channel. Trying to enable iOS simulator. Been stuck for 30+ minutes, can’t access project or code. Any fixes or workarounds? Thanks! 
