EDIT: the issue seems to get fixed if I cache pack, but as im still editing the data I prefer to use external loading.

EDIT2: noticed that I also had some anim issues, so I went and carefully compared to my older client to find the difference, and got everything fixed

Any1 got ideas what causes this:
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^as u can see the models/objects turn invisible when I change the camera angle. (using #474 data)

PS. the data used is from my older client where its working fine, so the data itself should be fine.