Hi Joe,
Please find the attached file/link. https://1drv.ms/u/s!AsuY7kAA2sckg7tZoCvopMS-p5Vkfg
I was trying to copy in a drawer component I pulled from a previous design (prior to using CabWriter). I was attempting to add the drawer box parts to the CabWriter parts list so I could have a unified Cutlist.
When creating the parts using the “Make CabWriter Component” I noticed it was not assigning a “Comp #” after the CabWriter part was created. I’m not sure if this is because it came from a previous version of Sketchup, the fact the I probably changed the part axes, or some other problem. (actually, I went back and saved it as a 2018 file and it still has the same problem)
I tried copying in a cabinet I made in a separate file (the same one you fixed earlier), and I noticed some of those parts lost their Comp # (front rails, stiles, drawers). They exist on the stand-alone file, so not sure what happened there.
Creating a random custom part produces the same problem. No new parts seem to get a Comp #.
Steve