Kstars 3.5.0 has been very stable, I was about to put a post about it and then I kid you not 30 sec after I thought about the stability the all thing went batshitcrazy on me. Very spooky.
First time this actual error happened ever. I fixed it after figuring it out, and I'm running 2 sessions now.
One thing that's not quite working well is the guiding, I think I may have a log and will post it another timer, something about exposure timeout.