I can also vouch for the recent FB glitches. In one case, a buyer wanted to leave FB for me but was not allowed by ebay because ebay didn't realize the item was paid for (it was via Paypal!). This was a dutch auction, but I don't know if that has any bearing.
In another case & another auction, I LEFT FB for a buyer, but My Ebay page doesn't reflect the FB having been left. When I leave FB AGAIN, I get the message you got.
Ebay glitches! -- What would we complain about if we didn't have them?!
...Oh yeah, that's right! We could complain about the AS glitches!