When I planted it, the game froze for about 5 second. I could still move the camera, but the engine seem to freeze. I don’t know why this is. Chopping them down had much lees of an effect (about 1 second), but i want to know if this could be fixed…
Things that spawn at world gen does not push the water out of their hitboxes, that is why it is not a problem in the swamp (or archipelago), the water is placed after them. Though moving or placing something will make the air pockets.