I just create a new project and do the same workflow, it worked well.
After recreated the CameraAsset, I finally figured out the reason:
- Before the PanningFraming Node, I use a FilmBack Node, set a SensorWidth and set the bool ‘Constraint Aspect Ratio’ to true
- Apparently this constraint is not compatible with the logic of PanningFraming and will cause a crash, which I believe is a BUG
- if I remove the FilmBack Node or move it to after the PanningFraming Node, everything is just fine