Materials not transferred through Datasmith

I have a scene that was imported in 3dsmax as fbx files and then transferred to Unreal via Datasmith. The scene in 3dsmax shows correctly and renders all textures. However, Unreal does not compile the materials correctly and produces lots of white materials. See screenshot please and any advice is greatly appreciated.

Further to this, I saw that 3dsmax treats the materials as multi sub objects and Datasmith does not gather the associated textures of the submaterials, only provides the default color. Any ideas?

This is still an issue, anyone has any information?

Maybe you need to convert the materials to something that Unreal understands, like standard material, or vray. Also not all maps are supported, especially those from 3rd party plugins. I suggest to make some export test with a few objects to see what works. By the way what materials do you use in your 3dmax scene?

here is a link that may help you :How Datasmith Translates 3ds Max Content for Unreal Engine | Unreal Engine 5.4 Documentation | Epic Developer Community