Animations Not Working on Build - 4.26.2 - Metahumans

Hey all!

So I am using meta humans to create some characters for a short demo I am working on, and in the editor their animations work perfectly.

The body mesh for the meta human is set to using an animation blueprint, and I’ve given them a blueprint to use.

For the other body parts, like the torso and legs it’s set to use a ‘AnimPreviewAttacheInstance’ as I read online somewhere to use that, and it doesn’t work if it’s anything else for me.

In the editor it works fine! - But when I play the game only the body animates and nothing else (see screenshot)

Anyone had this before / got any suggestions?