Yet another quality issue. Sounds like the dealer really cares about fixing this right. It happens. My shower floor had same issues upon purchase used. I had to reinforce the shower floor. No worries now after nearly fourteen years.
Oasis Bob
Wonderful wife 3 of 4 kids at home. 1 proudly serving in USAF
2018 Ford Explorer
2001 Bantam Trail Lite B-19
HAPPY TRAILS:)