Door_Kun_

I got on for the first time for a few months the other day, and none of my 0 tick farms are working, they won't fast grow cactus/bamboo. I tested in a single player world so I know its not the Minecraft update, so I don't know what to do. This is on a small server that me and my friends play on, I'm not the owner, but I have op. I would really appreciate it if someone could help us. Also, the Random Tick speed is already set to 3.