Hey All ,
after exposing a render button from the maps baker ( lab tool ) to unreal engine,
it works fine inside houdini .. but inside unreal nothing happens when i click on it
any ideas what it could be ? ( there is no error inside the logs )

EDIT : after trying more stuff i get this error :

Error running callback:
Traceback (most recent call last):
File “<stdin>”, line 1, in <module>
File “opdef:/labs:op/simple_baker::2.0?PythonModule”, line 6, in render
File “D:/Houdini/houdini/python2.7libs\houpythonportion\ui.py”, line 927, in decorator
return func(*args, **kwargs)
File “D:/Houdini/houdini/python2.7libs\hou.py”, line 56888, in render
return _hou.RopNode_render(*args, **kwargs)
OperationFailed: The attempted operation failed.
Error: Error rendering child: /obj/TerrainTool/Terrain_network/River_LOGIC/simple_baker1/ropnet1/rop_games_baker/render_plane