Branches not working on build

Hello,

I’m having an issue with a build of our game, I’ve got a character select screen with 3D models showing the characters and having the skins change on the model in real time. The function works fine in the editor and in standalone game but as soon as I build the project it no longer works and the models sit there, skinless.

I’ve identified the problem being that the build cannot verify the two branches in the screenshot attached. I don’t know why those work in the editor but not in the build.

If anyone has any ideas or suggestions, it’d be greatly appreciated.