display/lighting bug?

Hello, so basically this is a bug I have on a single map that i migrated from a previous version of minecraft(I don't remember sorry)to 1.18.1 and since then I seem to have these weird block textures on certains blocks or part of blocks, here i show examples on stairs and trapdoors but note that i used to have that with stone bricks too, but it disappeared when I relaunched the map( before you ask, yes i tried and do it over and over for the others to go but didn't work).

fyi: im using optifine and I updated it to the latest version for 1.18.1 but nothing changed

i am also using a custom resource pack but I don't think it could be that as the same resource pack works perfectly fine with the same blocks on other maps.

 

I think i've said anything, to anyone who can help me please do because this is stressing me out i feel like i'm never finishing my builds now :/

 

Here are some pics to help