Sorry if this is not the appropriate place to post this, or if it has already been posted, but has anyone witnessed this while flying lately? When looping with flaps on, at the top of the loop, my plane gets hung up and I can't roll it over or continue the loop. Even if I fully retract the flaps. I have to wait until the stall gets me pointed down, then I can finally recover. However, it takes thousands of feet. This happened to me in MA last night in an LA-7 (I fly it a lot, but wouldn't consider myself an expert at it). I thought maybe it was just the plane and went over to the Dueling Arena and flew an F4U-1C. Same thing happened, multiple times. I fly the F4U-1C all the time, I've never had this happen to me. Does this have anything to do with an upgrade or wind change?