Underground backgrounds not displaying correctly when using Advanced World Generation option

[PlazmaKG]

When you turn on the advanced world generation option in the mod's config (for more settings), any world generated this way doesn't display the background between the underground and the caverns correctly.

There's a big black line between the background that is about 4 tiles tall.

[Ishigh1]

Yeah, known issue, never figured that one out

[Ishigh1]

Actually it should now be fixed