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Troubleshooting

UI Restart Does Not Restore Prior Editing State

  • Stop behaviors before closing the UI.
  • Load behavior again after restarting the UI.

Transition Placement Compatibility

Edits made in flexbe_webui are not preserved if behavior is resaved with legacy flexbe_app.

Qt Spell-Check Dictionary Warning

Startup warnings about path override/dictionary may appear and are typically benign.

Optional env var:

export QTWEBENGINE_DICTIONARIES_PATH=~/.dict

See Qt docs:

Blank Client Window on Some Ubuntu 24.04 + Older NVIDIA GPUs

Try one of:

  • ros2 run flexbe_webui webui_client --disable_gpu (preferred)
  • ros2 run flexbe_webui webui_client --qt_software
  • use browser-based UI

Source/Install Mismatch During Development

After code updates, rebuild + source before launch:

colcon build --packages-select flexbe_webui --symlink-install
source install/setup.bash

Diagnostics

For timing/websocket diagnostics, see:

Security

For token auth and network exposure guidance, see: