Hi There,
Im my assembly there are 3 constraints that are undefined. They can’t be corrected or deleted. They can only be deactivated.
However they cause a major problem extremely slowing down the operation of ZW.
See the image below:
Just a thought - do the objects being constrained exist?
If not, perhaps just create a blob with the exact same name in the assembly file.
Use the Find Lost Parts and it should show up.
Even insert in the assembly then delete the constraint and the blob.
Worth a try.
Cheers - Paul