I found a really strange bug with one of my tileentities. When i place the Block in the world, it first is rendered, then the metadata is beeing set and it rotates so it faces the player. Once that is done, it isn't visible anymore. All of the rendercode seems to be excactly the same as for the other tileentities that work. Thats why i don't post it here. Maybe i did something wrong elsewhere. Does anybody know where the mistake could be?