Ender IO's Item Conduits have a number of issues: Changing the Channel color wipes the conduit's gui, this problem resolves when closing and re-opening the gui. Changing the mode from extract in either direction generates a fatal error, kicking the player from the server. Changing the redstone mode generates a fatal error, kicking the player from the server. Changing the Signal Color generates a fatal error, kicking the player from the server. Enabling or disabling Round Robin wipes the gui, similar to changing the Channel color. Placing speed upgrades or item filter upgrades do not appear to cause problems, nor does inserting items into the filter. Changing from whitelist to blacklist or matching metadata wipes the gui. None of these bugs generate notable error logs.