UK e-gates always reject my passport regardless of airport. It works fine at those overseas airports that will accept UK biometric passports. As mentioned in earlier posts Border Force agents won’t tell you what the problem is but I have, I think, managed to solicit the information that someone with a similar name is on a list. And separately, that I shouldn’t even bother trying to use an e- gate and that there is nothing wrong with my passport. It’s frustrating not knowing how long this problem will go on, and s ems extraordinary that having been checked by an officer once my record can’t be marked as OK.