It might be an artefact of the digital image, but I think I see a problem with the through point rail on the turnout in the last image just above. It's frog end doesn't meet well with the closure rail, and that will mean a derailment. I hope I'm wrong.
I'll have to inspect that this evening when I get home. I believe it is either an optical illusion or insignificant because I had been running trains before I started with the plaster. It's a curved turnout by Peco.
The closer I look, I believe what you are seeing is part of the very bottom of the joint where the closure rail and the through point pivots. If that's what you are seeing, then the wheel flanges don't go that deep.