Bruce Lee Show full post »
Here is how it should work:

Select a poly object, turn into nMesh.
Apply a constraint with "use sets".
Replace the groupParts1 node with group one. Make sure the groupId is properly connected to the group node and the group node outputs objectGroup data.
Apply another constraint and perform the "group" related actions above on it in exactly the same way.

I think you are keeping both group and groupParts. That will most likely confuse Maya.
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Bruce Lee

I think I know where we went wrong.

We did not check the output Object group this function. So maya will crash.

thank you very much ,peter!

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