Distant Horizons chunks don't render with the Axiom mod installed.

Today, I noticed that the Distant Horizons chunks were no longer appearing. I was confused for a while, before I realized that the chunks wouldn't render with the Axiom mod. This is just a creative world, and the maps are small, but it's still really annoying. The first image shows the world without Axiom, and the second and third ones show the world with Axiom.