Hi!
Checking “Enable Density Scaling” on Static Mesh Foliage used on Procedural Foliage Spawner causes the Engine to crash with “Array index out of bounds: -1 from an array of size…” when opening the level with Scalability settings lower than Epic. Happens in game and happens in the editor itself too.
Seems very a similar behavior of UE-51604, but with Static Mesh Foliage.
Best regards