Regg,
Thanks for sharing your photo links.
Good to know that you were able to zoom in on the problem. I’m amazed that Atlas is still making the same “Snap” switches that I remember from over 40 years ago! The blades are stamped. As mentioned, over time as they start to “very slightly” bend inward and downward, loco & rolling stock wheels will pick them and derail. Carefully filing the points to a taper usually cures the problem. Keep in mind that it could creep up again in the long term if you run your equipment frequently.
Although the expense is higher, you may consider investing into the higher grade Atlas turnouts or go with Peco turnouts.
The friend of mine I mentioned bought a big magnifying glass with a built in light. It sounds comical, but it’s a helpful tool and has helped him improve his track work. He has a mix of EZ Track and Atlas Snap track. To me, not the best combo to use but he’s managed to make it work and actually runs 40 car long freight trains on his extended folded dogbone layout.