dcparizo:
When I compile a Marlin Project, I lose the U8Glib ...
Please provide a detailed description of what you mean by "lose".
ballscrewbob:
I would advise using 1.8.10 or 11 or 12 myself.
I would definitely recommend macOS users to use Arduino IDE 1.8.13. 1.8.11 and 12 had a macOS-specific bug that caused it to crash for many macOS users. They can use 1.8.10, but there has been quite a bit of development work done over the last 9 months. 1.8.13 has a super nice new Tools > Board menu layout that anyone with a lot of boards platforms installed will love.
Thanks Ballscrewbob -- I'll take a look at that and see if I've done something wrong (and move over to github.)
Pert -- I can do one compile/verify after which the library is no longer "installed" with either the library manager or the zip file option. -- I can re-oinstall it for another compile but any change, save, verify ... drops the library. I've found that with the U8Glib (version did not matter) and the TMCStepper libraries.