Looks like Elon Musk botched X's passkey and security key switchover, and users are reporting that they're getting stuck in endless loops and, in some cases, getting locked out of their accounts.

techcrunch.com/2025/11/12/elon…

Elon Musk's X botched its security key switchover, locking users out | TechCrunch

As part of an effort to retire the old Twitter.com domain, X is requiring passkey and security key users to re-enroll — but are getting stuck in endless loops and unable to finish.

^{Zack Whittaker (TechCrunch)}