Has anyone had trouble at McCarran (or anywhere else) with TSA Precheck while using a mobile boarding pass? We ran into some issues yesterday while catching our flight home. We didn't need to check any bags and went directly to the security check point. Once there, we were told that "there is no precheck when you use mobile boarding passes". The precheck logo was clearly displayed on the boarding pass that was generated by the Delta app. They then directed us to the line for the full body scanner and told take our tablets (not laptops) out of our bags as well. Seems minor in the grand scheme of things, but when you pay for that service and they don't deliver, it is a little frustrating. Without precheck, I would normally pack and even dress strategically to get through quickly. I'd already have my belt off, easy shoes for off and on, empty pockets etc. Never would have expected to have to dig out the tablets. All of that can be dealt with of course. But while I was waiting in line to get through the full body scanner, they pulled 3 people that weren't in the precheck line through the regular metal detector and on their way because the line was getting a little long. First world problems, right? I know....but I thought it would be worth posting. If you have a chance to hit a kiosk to get a printed boarding pass, it may be worth your time. Not sure if that is actual policy at LAS, or if someone was just making it up as they went along. Cheers!