Originally Posted by
WilcoRoger
Indeed. I would rather describe it as total confusion. My latest success - AY in Y with BA OWE card ^ At other times it gets refused

AY in Y with BA Gold (and previously BA Silver) has never caused me any trouble.
Anyway, for the time being I prefer going through the "main" security at T2, because of the new weird sliding door things they've installed at the other security line. Makes me feel like a parcel in a sorting office...