2015 SL Leak - Right rear floor board?

Think I have a leak somewhere in the right rear floorboard. Thought it was a kid spilling a water bottle, but not 4x. Noticed today after rain that it was damp on the floor mat. Took to dealer today to inspect, the techs were not there, but the nice service manager inspected all door seals and did not see anything unusual. When driving, its almost as if the right rear wheel splash from wet road is louder on the right than the left. Wondering if they forgot to put something in under carpet in floorboard? Anyone else having similar issues?

Stinks because it makes inside very humid and fogs up easily. And makes my Leaf not smell new.

Thanks,

Haven't heard this issue before. You could be the first.

If something was missing in the wheel well, it should be easy to spot.

I'd guess a seal. Maybe tape up some paper towels and go through a car wash, see if it shows up anywhere?

They may have to replace your carpeting.

My leak was on the right front floor board. See link below.