No issues with mine but I also only handwash. Granted I wash using heavy water and pressure washer.
Also check:
1. Your rear hatch is slammed shut.
2. Check the latches above rear doors on both sides to make sure they are locked in place. I had to fix mine with my wife help pushing down on the metal frame while I used hammer and flathead screwdriver to secure both sides. This was 3 months ago. See pics of mine BEFORE silver bolts are locked inside the black metal hooks.


2021Bronco☆2.3☆BL☆7MT☆4D☆A51☆SoftT☆ARRIVED 9/9/21☆SOLD 1/21/23☆NT Supports▪Consults▪Supply's Car Dealers, Vehicle Distributors, and Retail Customers Since 1992