I have a sub-assembly that has dimensions controlled by equations in the full assembly. I needed the sub-assembly in another model so I used "Pack and Go", changed all the file names for the sub-assembly, and resaved all the files for that sub-assembly. Resizing the new sub-assembly works just fine but when I reopen the original full assembly, all the equations where I refer to features in the in the sub-assembly have changed to the file names that I renamed the files to when I used "pack and go". Is there a way to avoid this? I would like to keep my equations referring to the original sub-assembly name.