Cannot sign in with my Microsoft account with the launcher for both versions for Minecraft

When I open the new launcher to sign in to my Microsoft account (I have migrated to windows), I press log in with Microsoft. When I pressed that, it comes up with "Something went wrong in the login process". I've tried restarting the program, I signed out of the regular launcher, that didn't work either. What happens when I press the button is: 
It comes up with the Xbox Pop-up that you see when you've signed in, but the box is blank!

It disappears after a second, then a message appears in the top right of my screen saying "Something went wrong with the login process". 

I can't find any fixes to this, can someone help me please.