@flytv1 The new patch works for me so far, and I haven't noticed any funky stuff from my scripts. I wonder of XP Pro suffers from the problems you are reporting.
I am sorry you aren't pleased with the progress. Please file problem reports on the problems that you can duplicate. I imagine Phillip and the bunch of pilots could use your abundant knowledge of the C172 flight model to make XP the best thing going. Here's the link:
https://www.x-plane.com/x-plane-bug-report-form/
Easy to fill out and you usually get a response that they've received it.
I admit I don't save flights anymore, as they have never worked correctly for me. It is easy enough to just start a new flight each session. I use FSE and it remembers where I landed each time, I just need to change the parking spot on the next flight.
I actually think I'm getting 1 to 2 FPS more now, but I have no data to prove it, just a feeling at my test airport (KLAX RWY 6 @ noon on July 1, all scenery and plugins running).