I can see the chests or other items trought walls

[HinataOuO]

I have this problem since after I entered in the compacting machine.... when I went out from it I started to see trought the walls only from specific angle and faicing the objects that contain drops.
I tried to remove the optifine and reinstall all the modpack... remove config, and reinstall all minecraft folders.... but I have the same problem yet. Is it possible that the problem is caused by the modpack??? It became so unstable and crash a lot after the chests problem appear.
I don't know wath can I do..... could u help me pls?? Thanks

[HinataOuO]

I already fixed the problem by myself, ty