We purchased our 2021 STT312VBH a month ago. I pulled out of storage today to get ready for the weekend trip. I was doing an inspection and found that the shower pan is cracked. I am compiling a warranty list for the dealer. I cannot believe this made it past quality control.
Make sure they replace it, not a "repair". Can't tell if your shower is one or four pieces. I think our two piece corner shower door had to be put in before the bathroom wall was installed. It probably would not make it through the camper door, in one piece.