On our last outing we had water leaking onto the floor, I couldn’t see anything along the doors so I opened the access panel and found that water was running down the outside of the drainpipe around the bottom of the shower pan.
The previous owner had silicone all around drain pipe so this was an ongoing problem.
The first thing I notice that Georgetown had very poor quality control if you look closely the plywood holding up the shower pan was 6 inches too short and there was nothing supporting the pan around the drainpipe. There was two cut outs for the drain pipe but are 6 inch back from the pipe.
Due to all the flexing of the shower pan it cracked around the shower drain pipe see first picture.
I used Devcon Fiberglass, Porcelain & Plastic repair kit to fix the crack an added more support under the pan. We haven’t been out since I made the repair but there is no more leaks when I did a test last week.
Good luck with your problem.