Hey,
so after quite some time I figured it out. For all of you who might have the same problem to face, here is the solution:
At begin play (construction does not work) execute the Console Command “r.ForceLOD [X]”. I use this in order to make a game scalable with mobile and desktop VR (Get Device Name is a custom Function to check, if it’s a mobile device the game is running on).
The downside to this is that the distance based LOD won’t work anymore. Once the LOD is forced, it won’t change!