Matinee movie - Masked material not visible

Hey guys,

I’ve got a problem when trying to use the matinee movie tool.
It basically works perfectly fine except one material that is not shown (shows the default material like as if the material shader isn’t calculated yet). The material is a masked material if that matters.
The weird thing is that I’ve got another material in the same level that just has another texture but is apart from that identical and I’m not having any problems with that one.
Any ideas?

EDIT: Problem solved, I don’t really know how, I just fiddled around in the material editor, just stuff like switching multiply inputs, nothing that really changes anything but now it works

Same problem here, with plant billboards.