Stair Textures

For every direction except east, all stair textures are messed up. On west, a stair in front of a block has textures that are not lined up. (Screenshots). For north and south, I don't even know whats going on. And corner stairs, well, just check the screenshots! I saw bugs like this on 15w33, but my version is 15w44b and it is still a bug.