Figured I'd pass this along to all the 22FB folks out there since this community has helped me so much.
Pulled our camper out of storage and some of the toilet paper sitting in the cupboard on the floor had some mold on the bottom. Thought it was weird and started looking over that area. Nothing obvious popped up so I let the whole shower area dry out after a wipe down. I then started hosing spots down starting at the drain and working up/out. Found this and I'm thinking 22FB owners will want to check this asap. This spot right here in the corner should have been caulked. When I hose this spot down, it started leaking minutes later and since it's been caulked the leak has stopped! A nickel worth of caulk and much future heartache potentially saved!!