geometry group behavior change in 12.5 or is it bug??

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in 12.1 build
{ grid -> group -> polyextrude }, grid geometry associates by group and accessible down the chain. now in 12.5, group geometry expand along with new geometry create by polyextrude and lost original grid association. Is this a bug or desire change as new feature??

in 12.1 build
{ grid -> group -> attributeCreate -> polyextrude }, group geometry inherits any down stream created attribute and having original grid accessible. How would I retrieve this grid geometry with down stream attribute in 12.5 build?? The new group parameter ‘merge operation’ seems only handle group collision.
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I think this is a bug recently fixed (today?). Try tomorrow's daily build (ie. something >= 12.5.390)
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hi, edward, thank you for reply. :wink:
Test with 12.5.391, problem remains. I just submit a bug report with an image below to demostrate the problem. If I open a file build in 12.1 having setup like polyextrude and group in a chain in 12.5 build, it basically mess up all the group members down stream.

thanks for help

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12.5polyExtrudeGeometryGroupBug.jpg (734.3 KB)

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