As I sometimes work on different environments/accounts/customers, I've made it my habit to visit make.powerapps.com in incognito mode to reduce chances of account mixups or cookies from 'wrong' accounts messing things up. (I'm using Chrome)
In the past, this worked fine, however, recently, a lot of error messages have started popping up when I do this, so much to the point I can't even open an app or create a new one. It just keeps looping back with "Sign in required" messages, and even when I do this it just keeps popping up that message.
Is this a known issue? I've even cleared all cookies and cache but it doesn't help ( not that it should matter anyway, since it's an incognito window). What's going wrong?