FRIK Issue with crouching

Hiya, just got a small problem with FRIK that I'm hoping someone can help with. I've set all the calibrations and the FRIK scale matches my irl body scale, but whenever I crouch down irl, the rig crouches down with me up until halfway and then starts protruding it's bottom backwards, causing the arms to follow and eventually disappear. It looks like when Nate/Nora crouchwalks in flat fo4 except it happens regardless of me moving.

I've tried setting the body to move downwards as much as I can without it looking unnatural but that gets the rig's shoulders to sit where my actual head stars and just looks off. Same with me shrinking the Body Scale.

Please can someone help with this? The mod works flawlessly other than that and is amazing but it's just that one problem that I'm struggling with.