Why is my Raptor partially transparent in exports? UE 5.02

I am exporting an animation for compositing but for some reason part of my raptor is transparent. I assume it may be something to do with the feather materials, but I’m still fairly new and not sure what to look for exactly.

Here’s the raptor I’m using: Raptor Dinosaur Animated in Characters - UE Marketplace

Hello, I agree… so I think the best you can do is to ask them: