It’s never recommended to downgrade.
If issues appear right after an upgrade the first thing to try is usually reinstalling the upgrade, to fix something that might have gone wrong during the upgrade process.
Short answer: yes
Long answer: after pulling out the battery… I always install updates via recovery, so I installed this version a 3rd time, now LOS has started up again (puhh)
I think I won’t update my phone while I’m at work any time soon.
I think after some stable days, it’s ok to say that the combination of old Gravitybox and new LOS caused the troubles, let’s see how the next version of LOS behaves