I just came back from a trip to Europe with RTD and GC. I didn't have any trouble, but inspection in Amesterdam and CDG Paris (both connection airports) was brutal. First of all, neither of the two airports recongnized my RTD. In Amesterdam, they sent me through secondary inspection. Five or six officers gathered around and looked at my RTD with wonder! With a 3-hour lay-over, I almost missed my flight.Did anyone with GC and RTD have trouble recently while returning from international trip?
Also, during departure check-in in Milan airport, the Air France officer was ridiculously clueless. She asked me multiple questions, asked for my GC, then driver's license, then asked me to write my address on a separate piece of paper.
I had it the easiest in LAX when I returned. The officer asked where I had been, left me for a couple of moments, came back and said welcome back! The inspection lines were the shortest in LAX and the longest in Amesterdam.
Make sure to give yourself enough time in the airport specially in Europe.