2011 qx56 stall no start

[Tbland09]

Hello I have searched all over and ha ent gotten a clear solution so I figured I would try here. I have a 2011 qx56, it stalled and wouldn't not start in a drive thru line a couple weeks ago. I had it towed to a mechanic and had him look at it. He messed around with the keys a little and it started. After that he kept it over night and started it the next morning just fine. I went and picked it up and drove it home and parked it. I had a mobile locksmith come and reprogram my keys just to make sure everything was good. Over the next couple of days I would start it up and it was fine I even moved it around the house. That Sunday I went to drive it to church and not even 2 miles down the road it did the same thing. Stalled and wouldn't start, I had it towed back home and it hasn't started since. It's acting like it's not getting fuel but I pulled the fuel pump out and tested it and it works fine. It will sit there and crank but just acts like it isn't getting fuel. Has anyone else had this issue or could someone point me in the right direction? Thanks in advance and sorry for the long post.