*SOLVED* unable to log in on Musecore 4

I'm trying to log into my existing account but all it does is say I'm logged in on browser. The app shows nothing. I tried to log out on browser and login after it prompts me to, but nothing happens. I've also closed and opened Musecore before and after trying, and deleted/re-downloaded Musecore. I downloaded the update before this, and now i'm unable to save any scores i edit because it tells me to log in.

edit: i restarted my entire computer and it started working again. Not sure why it started in the first place.