I entered in API details for a flight next week (LGW-AMS) but realised after checking in that that passport is actually at an embassy waiting for a visa.

Will I have any problems at the gate with presenting a different passport? [Both are valid so no problem with the actual API bit, just a potential problem with a zealous agent on the ground).

There is a note on easyjet.com talking about changing API information online, but I think this is disabled after checkin...

ta