Minecraft: 1.20.1
Fabric: 0.15.11
Iris: 1.7.0
DistantHorizons: 2.1.0-a
Bliss: main branch

I'm not entirely sure if this is Bliss's problem or DistantHorizon's.

this happens because there is no shadow rendered there.

to render a shadow is a task on its own; making the shadowmap render that, and that far, would significantly harm performance

This doesn't seem to happen with Photon though. I wonder if you could ask sixthsurge how he does it