traceback errors

[PavelKhaidarov]

Currently, when an error occurs during processing (e.g., in run_preprocess or run_render), the full traceback is often swallowed or only partially shown in the Blender UI addon. This makes is difficult to debug issues like missing dependencies or file path errors.

It would be very helpful if api_server.py could explicitly print the full traceback to the console/stdout when an exception is caught.

[sixiaozheng]

Thank you, we will fix this issue later. We also suggest you try Option 2: Script Pipeline, as this method is easier to debug.