UEFN, import TWinMotion scene

Hey, I have a problem with uefn after exporting a scene from Twinmotion to Ue5 and then to UEFN. I know it can be done, I was inspired by this topic: https://www.unrealengine.com/en-US/spotlights/taking-archviz-from-twinmotion-to-uefn-via-unreal-engine?fbclid=IwZXh0bgNhZW0CMTEAAR3Eby7MhW7ZK9ISU1vsVJYo1a1LAYfNKgOjoyJEaBhyXoo9CizcPl91NGo_aem_04ljss84JgVa_Noygty6eg
The thing is that TM generates Rendertexture files via datashmith, e.g. _RT. They are not supported by UEFN. You can’t simply delete them because they have parameters related to materials and then all materials become gray in a checkerboard pattern. Generally, I think it’s about dynamic reflections from TM but I’m not sure. Maybe someone knows how to handle this topic?

Thanks