GFI Not Resetting

The problem may be even simpler than the GFI. I had the same problem on my 2021 R-Pod. Forest River stripped the lead too short that attached to the GFI and it was not making connection. Probably jiggled loose on the 150 mile trip from the dealer. I stripped it a bit longer and reattached it. Easy and safe for you to inspect if you don’t have the Pod plugged into AC,

Status update: It’s fixed!.

It 100% ended up being a crap tier GFCI receptacle. Had someone replace it, and everything is now right as rain. Considering we leave for the U.P. in 11 days and the guy just happened to have another job cancel on him due to weather, I couldn’t have asked for better timing. Y’all definitely accurately diagnosed it as being related to that, which was backed up by my own testing. Live and learn! Thanks to all of you.