Recently, on my bigger airliner flights, the flaps won't extend for landing. This is not just for s certain airliner, it's for ALL of the airliners! It's very annoying. If I am on final, and I have, let's say, full flaps set, they won't extend. Not even one notch of flaps work. But when I'm at around 100 feet, they start to work, but it's too late... Any way to fix this? Any help is appreciated!