I’m still getting it both on bloom and fluid.

When I click “You Have 548 Unread
You have %1$s” It goes to the unread posts page – it’s just the wrighting that’s scrambled on the link.

When I click the second link – “unread %2$s” It goes to a page that sais this:

Bad Request

Your browser sent a request that this server could not understand.

It’s a 404 error.