Figured I'd create this thread for a known issue.
I'm currently in the process of trying to troubleshoot this, but when you use Editor Extensions alongside this mod and start a new save on the EditorExtensions/Testing scenario, the game freezes indefinitely. I can't pin this down with my current debugging tools. If you need a workaround, simply use the map editor or use something like Blueprint Sandboxes instead.
I released in spite of this issue mostly because the issue is relatively minor, easy to work around, and the mod is otherwise working normally.