OSE Workflow FreeCAD Bugs

• exploded assembly group sturcture fell apart when new explosion was added video details EPA grouping bug The FreeCAD file is within this zip this zip The error message:

 Running the Python command 'CreateSimpleGroup' failed:
 Traceback (most recent call last):
  File "/home/llg/.FreeCAD/Mod/exploded_animation/EAInit.py", line 71, in Activated
    ea.createSimpleDisassemble()
  File "/home/llg/.FreeCAD/Mod/exploded_animation/ExplodedAssembly.py", line 213, in createSimpleDisassemble
    dir_vector = selection[-1].SubObjects[-1].normalAt(0, 0)
function takes exactly 1 argument (2 given)