I seem to have stumbled on a unique bug. Using the exact same .jar file (6.0-beta-01) in both my modpack and server installation I have run into a problem with commands. all "/" commands work perfectly and as intended however all "//" commands return "unknown command. Try /help for a list of commands". The weird part is that when I go into a singleplayer world all of the commands work perfectly fine. Do you guys have any ideas?