A post that was dated 1 June, 2021 on the PMDG site indicated that FlyTampa has pulled the plug on ATL because it didn't fit their plan.

OK, thank you for your assist.

Originally I did install an AFCAD file for the 3rd runway.

Hello everyone. I just purchased KSEA, and it installed with such ease. The only problem I seem to be having, is when I select a starting gate. I end up starting the flight from between the two runways.
I had the same issue before I got Fly Tampa as well. What is causing this problem?