So..... I have a small hamachi server with my friends. Recently, I set up a sorting machine. This has been buggy since the beginning. I have a simple system: blue for ores, green for fuel, yellow for dusts, red for cobble, and black for any unknown items. Every so often, it stops, and I have to delete the block and completely replace it to get it to work again. Then it works for a few minutes and stops working again. Any ideas on how to fix this?