GLB not loading in viewer

Common issues and their solutions.

Flow Stuck in Pending

Cause: Backend services may be down or overloaded.

Solution:

1. Check service status at /status
2. Try refreshing the page
3. If the issue persists, cancel and re-create the flow

502 Gateway Error

Cause: Python backend is not responding.

Solution:

1. The backend may be restarting — wait 30 seconds
2. Check if you have an active internet connection
3. Contact support if the issue continues