Oculus recently pushed to github a version of their mod with 2.2 Distant Horizons support and unfortunately flywheel compat crashes the game when you try to turn shaders on.

In my case the game crashes even before entering the main menu when using the latest oculus build from the github.

Yup, can confirm this is still happening with the latest version of Oculus and Distant Horizons, I have a crash log with more details.