While driving the Doppelstockwagen (not sure which variant, I guess 767 but it should not really matter I guess), I encountered in-cab gauges disappearing in higher speeds WHEN you change camera from interior to exterior and back. The gauges re-appear while driving below 110 km/h, but disappear when you drive faster. I drove a RE1 Hamm(West) service from 17.51 at Schnellfahrstrecke Köln-Aachen on PS4. How to replicate: Accelerate to around 100 km/h using this train, then start switching in-cab and exterior view back and forth. Once you hit 110 km/h mark, the gauges or in-cab displays start to disappear. They will re-appear when you slow down below 110 km/h.