As of today, this is what I see on my accounts page:
I'm pretty sure I used to have accounts on more SE sites than only Area 51...
We found your accounts! They should now appear appropriately.
We added a new "site state" yesterday and figured a few places would crop up that we didn't account for...this one's solved, your accounts should appear within the next few minutes are the cache expires. If you notice any other cross-site weirdness, please do report it here on Meta Stack Overflow.