EBay does appear to be not guilty on this one.
Most sellers get their transfers within hours of eBay initiating it.
The few that don't (and come here) it does seem to be a problem on the bank end.
Bank has no place to put this Bank Ref ID in their system.
Any idea what went wrong?
Did you just answer your own question?
The bank doesn't know how to process the transfer? Seems unlikely since earlier transfers went through.
Do you check every time?