Inside Unreal: MetaHuman Creator

I have a question about using eye translucency in the post process. When enabling translucency it makes the eyes black, I’ve taken a look in the materials and what’s causing it is the M_Eye_Occlusion, if I switch this out so something transparent like glass I don’t get the black eyes but then lose other detail. I’m not advanced enough to know how to fix this in the material. Does anyone have any suggestions I know where I can get official support.
Thanks :v: