I've started a multiplayer game with my friend to test some of the mods. We've discovered this bug when I placed block from the mod. He couldn't see blocks that I placed. Though, both of us could see blocks that he placed. Server was hosted by me.

My screen:

My friend's screen (you can only see block that he placed):

I'm not sure what could cause that bug.

We're playing on Quilt loader 0.17.2-beta.1
Version of Minecraft: 1.19
Version of the mod: 1.4.1
Full list of mods we're using:

So I tested it today and we actually solved the problem. To fix the bug we simply changed from Quilt Loader to Fabric loader. It seems that although Quilt supports most of the mods for Fabric, in multiplayer it causes textures bugs (we ran into a similar problem with other mods) and incorrect chunk loading. So it's not a mod issue.