[Solved] Unity Hub not letting me sign in. Cannot use Collab

Hey, it seems Unity Hub is broken. I can't sign in. There's just a blank window when I try to. Collab tells me I need to sign in with Unity Hub to use it so now I can't access my project either.

How do i resolve this?

I've tried reinstalling Unity Hub. No luck.

 

Hi, I still have this issue. How can I resolve it? It's pretty important that I use Collab.

Some more info: This is only an issue on my windows computer. On Mac it's working normally.

I've found this thread that's seems to be exactly what i'm experiencing. I'll continue trying to solve it there instead.

https://forum.unity.com/threads/unity-hub-sign-in-window-blank.514092/

Update:
Solved this with advice from the above thread.

1) Close Unity
2) Close Unity Hub
3) Open C:\Users\Username\AppData\Roaming\UnityHub and delete the accessToken, accessTokenExpiration, refreshToken and refreshTokenExpiration files.
4) if files are locked and connot be deleted make sure you kill the processes in task manager relating to Unity Hub (there are sometimes sub tasks hidden under the Unity process).