They've had kernel issues on some of my other hardware lately. I'm not sure why. I have to drop back a kernel or two until one day the latest boots again. It's weird and they should figure it out. That said, I've historically ran Fedora -1 version and only upgrade once the previous loses updates. I never had these problems until running the latest updates. I've always thought they should have a 'stable' version that's -1 but with security patches. Staying behind requires a little effort in that you have to ignore the GUI updater constantly offering the upgrade.