Hello, I too have encountered this issue. I am running P3Dv4.5 with AS, SF3d and PTA with the addition EF5 the start of the issue. I have experienced it with the Fslabs a320 and well as the Qualitywings 787. I have noticed enabling/disabling manual lighting mode on and off will make the time advance if you let enought time pass(like 15-30 minutes). I would like to add that while EF5 is a good program, this is completely immersion breaking in a sim and imo a deal breaker.