Many of these are from the experiences of myself and colleagues, and some of these are noted in Peter's blog post in CAD Booster (and were experienced by us), so check that one out as well:  https://cadbooster.c...-about-3dexperience/

These are listed in no particular order, but I tried to keep related issues together. Also, I wrote about half of this while waiting for a save-to-3DX