i was making a modpack and found out that i can add this mod to it so i did that and found errors.
the modpack has a lot of mods. i disabled all of them and enabled some and tested to see which mods cause the issue and here is what i know

1. mc version is 1.20.4
2. modloader is fabric
3. mod version is chisels-and-bits-fabric-1.4.157 (latest version)
4. issues were caused by sodium and immersive portals
5. for sodium it doesn't render
6. for immersive portals it also doesn't render and hitbox is broken. i had a custom block with chisels and bits that was few layers on top of each other and the game was thinking that is was a full block. and standing on it was wierd (the game thinks it's a full block and teleports you on it but then you immidietly fall into it so the game teleports you onto it again which repeats quickly, you move slower)