Says "play demo" even though I can play the game

I switched to the new launcher about a week ago. I logged into my Microsoft account (which I transferred to earlier this year). Normally it would just say "play" on the green button. But it now says "play demo" and it also has other prompts for me to "buy" the game.

Not only that, but if I press "play demo", it lets me play the game like normal!