Ran into this a couple of weeks ago even worse it wouldnt allow me to even OLCI w/o getting the BP. I was flying on 1 UA flight no others, was told my PP and info needed to be checked and enetered into the system. I asked if the system changed since Jan, was told no , so I said my PP was swiped twice in Jan when I flew NY-SGN and back only on UA
Got to EWR and the agent only looked at my PP to make sure it was me and no different then looking at anyone elses, the kyosk went thru its thing no different then any other time.
My patience is wearing very thin, now if they can only locate my bag from yesterday YYZ-EWR which AC says they passed off to UA but UA left it or sent it somewhere