I can't get the RBD_to_FBX ROP to work: When I click render the red triangle shows up with the message “Error rendering child: /out/rop_rbd_to_fbx1/filmboxfbx1”.
That node has the following error:

(...) File "opdef:/gamedev::Driver/rop_rbd_to_fbx?PythonModule", line 254, in build_individual_nodes File "C:/PROGRA~1/SIDEEF~1/HOUDIN~1.459/houdini/python2.7libs\hou.py", line 10284, in cook return _hou.Node_cook(*args, **kwargs) OperationFailed: The attempted operation failed. Error while cooking. The to-be-exported node simulates and plays back fine, see attached file.

I'm on 17.0.459

As it turns out setting the “Expression Language” in the preferences to Python makes the node break. o_O