Plugin deformers, point edits, & crashes

[Helper]

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On 10/06/2008 at 13:07, xxxxxxxx wrote:

User Information:
Cinema 4D Version:   R9-R10.5 
Platform:   Windows  ; Mac  ;  Mac OSX  ; 
Language(s) :     C++  ;

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This is a tough one. With some detective work, it seems that crashes related to editing points/edges/polygons on the root Polygon object with my plugin hierarchy deformers (i.e. bones) is definitely related to the deformation process - that is ModifyObject(). If I disable DeformMode and exit ModifyObject() in that situation, crashes are nonexistent.

Anything that anyone can tell me about why this happens and how to avoid it? If C4D allows 'Deformed Editing', then there must be something that I'm missing or doing incorrectly in my ModifyObject() call which makes it susceptible to crashing.

Thanks,