Hey Agetian, since WorldBuilder's 2D maps utility was updated to add the BMP > BMP splitting feature, I've noticed that strange black vertical lines appear along the edges of each split chunk in chunks that range toward the far right side of large maps. The Hickory Branch map features one at it's right side extremity, and now I'm seeing that Welkwood Bog (which I'm upgrading textures for) features several on its right extremity. (WWB is slightly wider than HB in dimensions, so I'm assuming it's just more lines as it continues to go to the right.) Any idea what's causing this? It definitely occurs during the WorldBuilder splitting process, not before or after. The lines are exactly one pixel wide.