So, on my Direwolf20 server sometimes when there is a block update a large area of blocks around if becomes invisible. Then if there is another block update of a different kind (like me placing something) they become visible again. Anyone have any idea why this would happen?[DOUBLEPOST=1358966754][/DOUBLEPOST]ok so I updated sphax and it seems like it went away. Still anyone know why this would happen so I can better understand what to do in the future?