@Anonymous
This usually means corruption in the file.. I would close out everything in Inventor... Go to the folder location where the generated members are of the iPart factory and delete them. Then open the ipart factory or main ipart file and generate all the members again. Good luck and report back on your progress.
Mark Lancaster
& Autodesk Services MarketPlace Provider
Autodesk Inventor Certified Professional & not an Autodesk Employee
Likes is much appreciated if the information I have shared is helpful to you and/or others
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