When I got to plex.com it’s asking me to sign in but any time I click the button I just get “you successfully signed in” and then sent back to the home screen only being able to sign in or sign up. I looked through the forums and didn’t seen any other topic on this, might have missed it though.
Yeah, I’ve seen weird behavior since they changed the website. You could try deleting any cookies that were previously set for plex.tv.
I’ve tried that but the issue persists.
Have you tried a different browser?