[WaifuApple]

Not a mapping error explicitly, I'm taking a break from those. Collecting them in the background but no big threads from me for a while on that stuff, promise.
What I have decided to report, however, is more along the lines of a spriting error - that is, it appears some black pixels weren't cleared from the tileset used in terra flama and the lava lake. Specifically occurs with the right corner tiles of the roof, but you can see on each of these four there are jutting out black bits that aren't the void - because you can see the floor is still present on the tile.

I dunno, I just thought it was something to report in the same vein as the tyrant pixels.

[Neus]

This has been cleaned up in 2.89 v5.