Hi Everyone,

Need some help figuring out whats going on.. I'm in the process of building my permanent layout using Marklin K track. Im running both Sream and Diesel locos with no issues, until I tried my Marklin 3016 railbuses. They run fine until the go over the K switches ( model 2271).
They short out ( sparks fly)on the wheels going either leg of the switch... It seems to be happening at the moving rail blades. I have 5 units and they all do the same??
Hopefully someone can provide some insight as to what could be causing this.

PS pic of the layout coming shortly


Thanks