We recently upgraded to Inventor 2026 and after doing so, we have had frame generated members updating part numbers unexpectedly. We upgraded from 2023 and do not recall this behavior from then.
What happens is when we have a frame generated member with a feature like a hole, we will add a letter on the end of the part number to cause it to be unique from other same length members in the drawing BOM.
In 2023, that part number would only change if the length to that member was changed. However now, it appears that if any member has treatments done to different members and those members change/move, it will revert the part number even though the length of that member has not changed. Below, all I did was move the same length channel via the sketch, and it reverted the part number of the channel with the hole.
This is making it a huge pain for large structural assemblies as it reverts tons of frame generated pieces even though changes have not been made to those pieces. Is this something that needs to be looked into or is there a setting that we are missing? Appreciate any help.
@B-rad1011 Your post title was modified to add the product name and version and to increase findability - CGBenner
