the same face in group,as edit group status or not edit,the same face'plane not same D
Sketchup::Face:0xebb980c : [-0.970986868017047, -0.23913281275987, -4.9617365169842e-016, -140389.160067718]
Sketchup::Face:0xebb980c : [-0.970986868017047, -0.23913281275987, -4.9617365169842e-016, 43.7930310788506]