OK, so it is definitely not the brakes I don’t think. I went out just now and applied the brakes in a mild and hard fashion and the car did the same thing. It stood still for a second or two then hooked up and rolled forward. I captured it on video from a decent stop. I hope the trans isn’t messed up, I was trying to prolong the life of it by getting that fluid changed
https://youtu.be/UpRGKRjNyfA