OK, I've tried to log in to the Learn site with my msft registered personal account. It logged me in and then bounced me back to login. This time it has a thing below the login saying we've found an account you can use at this site (it's my msft registered
account). I click it. It logs me in, then refreshes me straight back out to the login page.
I've tried it on 4 (yes, 4) different browsers - IE, Edge, Chome and FF on my PC. Same behaviour. So it isn't browser specific at least. I also can log in to other sites like O365 etc just fine.
Is this broken for others or just me? No errors or anything, just keeps asking me to sign back in.
EDIT - for clarity, my issue is the new Learn Site. Not the old academy site. But that isn't a dropdown selection for this post for some reason...