Few days back I registered my Facebook OpenId with stackoverflow.com; it worked fine until I spotted something (to be described in another post).
Today, I came to meta for reporting that, and I now see a new trouble at hand. I am using a new PC, which didn't have me logged into meta; therefore, I logged in using my Facebook account. Unfortunately, the system could not link this to my existing account. As I understand, stackexchange should use common authentication mechanism and I should have my accounts linked. Also, whenever I try to add the two IDs from here, I am getting the option to sign out; clearly I should get an option to link these two accounts.
Is this a general issue with Open ID, or is this fixable?