I have a bunch of tabled pipe models, with cosmetic threads on each end. Randomly, when used in my next-level assembly models, they keep losing their brains and turning into threaded full length. All you have to do is open each length shown in its own window, hit ctrl-Q, save, then close it to correct the problem (see bottom pipe, below, for correct display).

Not a big deal unless you have a half dozen assemblies open with 15+ different lengths in each.

Has anyone else seen similar behavior out of Cosmetic Threads? Is there a fix or a tick box I may be missing?

I have had re-boots fix it sometimes, other times not.