Z-Depth Layering Issue

hey gang! are there any toon boom harmony builds artists on here?

i have this issue where i’m trying to get these characters to hug in my scene (both character rigs are made by me) but for some reason when i try to layer one characters arm over the other character using toon boom’s z-depth feature it won’t work no matter how far up i bring it in z depth. i made sure all the composite nodes in the scene are pass through so that isn’t the issue.