Strange tint on Nanite mesh after upgrade from UE 5.3 to 5.4.3

Hi,

I have upgraded my project from UE 5.3.2 to UE 5.4.3 and after the upgrade my nanite mesh has some blue tint.
The mesh is set to moveable and I am using baked lighting in the scene.
As you can see on the screenshot, the mesh looks fine in the static mesh editor and looked fine in 5.3.
But in 5.4 it has this strange blue tint that is present on the nanite mesh. As soon as i turn off Nanite, the mesh looks fine again.

I tried to replace all materials with a simple material but it had no effect. Also checked the volumetric lightmap, but there is no blue light baked in.

i have no idea where this blue tint is coming from and hope that someone of you has an idea what the problem is.