Nanite geometry completely broken (check images), but works fine in Editor mode

Hi, I’ve been facing a very weird issue and I have googled a lot and not yet found a solution. As you can see in the image, when nanite is enabled for my mesh it’s completely broken, but looks fine in the Editor mode. When i play the game in standalone game mode everything looks broken, performance is terrible, looks terrible. In editor mode it all looks great, performance is great.

This issue happens across all meshes in the world.

When i open the asset in the asset window, it shows the broken version of the mesh.
When lumen is on, both standalone & editor mode show mesh properly and everything runs normally, but asset window still shows the broken mesh. I have tried tweaking the values in Nanite settings with no avail. I really want to keep ray tracing enabled for this project, so solutions would be really appreciated.

In Editor mode:

In Standalone/Packaged game

Standalone / packaged

Editor mode

Any help would be greatly appreciated, i’ve been stuck on this for a good while now.