With PurpleIRC-1.9-1.0-9/11/8 and Forge 12.16.1.1907, the game gets stuck on "building terrain" when loading a single-player world. It also appears to trigger a NPE in Enchiridion.
Logs for builds 9 and 11, with and without Enchiridion
The world loads fine with no mods or with only Enchiridion
With PurpleIRC-1.9-1.0-9/11/8 and Forge 12.16.1.1907, the game gets stuck on "building terrain" when loading a single-player world. It also appears to trigger a NPE in Enchiridion. Logs for builds 9 and 11, with and without Enchiridion
The world loads fine with no mods or with only Enchiridion