Multiple texture error when loading level on to Onminverse

I am not able to load the cube map after I export my level from UE5 to Omniverse. When I take a look at the console, I have multiple errors regarding the cubemap texture:

2023-01-31 04:21:29 [Error] [rtx.materialdb.plugin] Texture upload failed for texture omniverse://localhost/Metaverse/Materials/Textures/

I also have other errors such as:
2023-01-31 04:21:29 [Error] [omni.hydra] Failed wait for MDL material (CubeMaterial(texture_cube)) snapshot

The skybox is also completely greyed out after I export my UE5 level to Omniverse and I’m not exactly sure why.