LODs break upon dimension swap.

When I go back to the overworld after going to the nether the LODs are gone. When I disable and re-enable rendering in the config I get this error shown in the images. This is on a multiplayer server with the Nightly Build on both server and client. Not entirely sure if nether LODs are working but I haven't pre-genned any of it yet and I don't really want to explore it right now.