And sometimes the junction appears to diverge left*, but trainz thinks it diverges right* (usually because it does, but by a very small amount, before it curves left again), and thus you set the switch to right to 'go straight' but it is actually setting it to diverge. Annoying when you're heading with the direction of the switch, fatal when heading against it.
There used to be a switch like this on one of the main lines thru York Yard in the 2010 version of the ECML route, and there are some in SnC iirc.
* And vice versa, of course.