Brand new 2019 Ford Fiesta bought at Andy Mohr Ford in Plainfield IN. After a couple months of driving it I noticed it would pop out of the reverse gear. I have raced vehicles my entire life so I know I slam that stick into reverse. It seems to happen the most when I try to put it in reverse while still slightly rolling forward. I believe it could be the sync's stopping the gear from fulling engaging but it shouldn't at such low speeds with such deliberate force applied.