Filament Track Switch Dynamic Mapping issues

Hey, does anyone know what could be causing the issue with Dynamic Mapping on my setup?
As soon as I enable it and slice the model, I get a message on the print page saying that the diameter of my main nozzle (0.4 mm) does not match the nozzle used in the sliced model (apparently 0.0 mm, which obviously can’t be right).

As soon as I disable Dynamic Mapping again and no nozzle is assigned twice anymore, everything works fine. But I actually want to use it to save time and reduce waste.

Ja, habe ich am X2D auch, probiere Studio auf die englische Sprache umzustellen. Bei mir funktioniert es dann.