Hey guys, so, I figured out something…
When you import direct from FBX to your level it does have that problem with lumen.
But when you drop on a folder into unreal, and afterwards you drop into your scene its get wat better to lumion, I don’t know exactly why, but importing this second way improved a lot for me.
The only problem with that its that you have to import your scene with the pivot point of all objects into the same point, what makes it harder to adjust something in unreal, like rotation, position, etc…
^ This way cause problems with lumen!