13:00:50 'Design456_Extrude' getArrowPosition-Failed. 'Part.Shell' object has no attribute 'Surface'
13:00:50 'draw_arrow' Failed. 'NoneType' object is not subscriptable
13:00:50 Running the Python command 'Design456_SmartExtrude' failed, try to resume
Actually, the problem was in the Design456_ExtendEdge. The part should be solid to use this tool. Don't know at the moment if Part.Shell should be supported?
Bug fixed by c6f9e2d5e0f1dd0c1fd15abe7bb05c44cb9d8433
13:00:50 'Design456_Extrude' getArrowPosition-Failed. 'Part.Shell' object has no attribute 'Surface' 13:00:50 'draw_arrow' Failed. 'NoneType' object is not subscriptable 13:00:50 Running the Python command 'Design456_SmartExtrude' failed, try to resume