So I tried to use this in November when I was leaving the EU zone, and scanning my passport did not work the first 2 tries. I went to another terminal, and then it worked. When coming back into the EU Zone (via Germany), I tried again to scan my passport a few times, and it did not work again.

Any ideas why? I had the EasyPass-RTP approved, but now I can't seem to get a response from them via email as to what might not be setup with my account correctly.