Distant Horizons Shadow Glitches w Chunks

I get this weird black shadow appearing at the side of my bridge. Second image shows the same glitch. One tower works correctly, other doesnt. Any fixes? It might have something to do with chunk borders. Both situations have blocks on top of the shadows. I think the problem is that chunk borders cut out the possible light sources that could lit up the space with shadows. Looks like that the distant horizons shadows work with chunks. Is there any way to fix this? I have Fabric 1.21.4. Shaders or not, doesnt change anything.