I have been experiencing this for a week. I just made a reddit post about this too.
- redid my config.js
- reinstalled magicmirror
- reimaged my pi and started from scratch
- no errors that I can find
This does not seem to be screensaver related, as I can still move my mouse and it shows.
I run a pm2 restart mm command via ssh and it restarts just fine.
Any ideas?