It seems to work when they naturally spawn on the servers I run, it might just be an issue with forcing zombies before round start? Have you noticed the bug when using it normally?

No they weren't converted, we had an issue with that in a different mod, but with this one even just me and a bot forcing zombies I dont have any claws.

Was the person converted originally a different special role? I thought I had fixed that already but it might still be possible for them to not have room if there is a lag spike I suppose. I can look into it

Zombie is missing the claws and doesn't get credits :/