Well, think I fixed it.
Pushed a new commit with that fix, the new shadow system and updated to 4.7.6. Please try it.
Now you can have cascades as usual. There are a few bugs still to fix on the shadows, but they are kinda working.
The video is looking good, got the scene from JECOGames, a small warehouse that fits good, and Xerithas and Wozner are working on the drone.