Keep getting a fatal crash with robots while having ghost belts with the following error report: 
http://puu.sh/DkN28.jpg 
Many Thanks, 
Error while running event beltlayer::on_robot_built_entity (ID 14) 
beltlayer/laulib/BaseEditor/BaseEditor.lua:372: attempt to index local 'editor_entity' (a nil value) 
stack traceback:
beltlayer/laulib/BaseEditor/BaseEditor.lua:391: in function 'on_built_bpproxy'
beltlayer/laulib/BaseEditor/BaseEditor.lua:878: in function 'on_robot_built_entity'
beltlayer/Editor.lua:151: in function 'on_robot_built_entity'
beltlayer/control.lua:30: in function <beltlayer/control.lua29>