Datasmith 3ds Max Corona Material Issue

When exporting a 3ds Max scene built for Corona I get a lot of texture issues after importing it into Unreal via Datasmith…
It seems that some texture maps are not converted correctly and appear with false colors (see attached image).
What could be the issue here? Most materials are from the type CoronaMaterial inside of Max with a lot of big Multi/Sub Material Obects.
Any idea how to fix this?
I also atteched the dialog I get after exporting from Max with Datasmith.

3ds Max 2018, Unreal 4.21.1, latest Datasmith version, Corona 2.0

Hello.

We have a dedicated support channel specifically for UnrealStudio and Datasmith. Please report your issue at the following link: https://unrealstudiohelp.epicgames.com/s/case-community-page

Thank you.