Why is my landscape completely flattened all of a sudden?

[DatPJ]

I’ve been creating this project for around a month now, and I’ve finally gotten to the creation of the levels. Everything was working decently, until just an hour ago. Out of nowhere, my landscapes COMPLETELY flattened themselves. Blueprint brushes, splines, sculpting, nothing works.

I have been messing with a “Curved World” or “Animal Crossing” material function to make the world appear spherical. And everything was completely fine. Then this happened.

Video showing before & after bug:

Flattened World Bug

The Tutorial I followed for the MF:

Part 1: Spherical world - Curved World Shader / Animal Crossing Camera - Unreal Engine 4 Tutorial

[DatPJ]

Edit: 12/1, 8PM - It appears that my Landmass brushes just aren’t working at all. Not on new projects either. Maybe this helps narrow the issue down