I am having an intermittent problem with the right wide curved switch. Some coaches, a silver liner, and a red double deck Regio car have problems on the switch.
It can happen in either direction. The red Regio control car lifts, but does not derail. I think it is the pickup shoe lifting on the frog. The silver liner it is the middle coach lifting at the frog and derailing. This is in push mode, not. A problem in pull.
Do i have a defective switch? This has not been a problem on the tighter curved switches, or on strait switches.

D