I don't know why this is, or why it hasn't been reported before but for some reason I can only use world edit once before needing to relog, I would appreciate it if someone could explain why this is or fix it. Btw mute sound, I can't render the file for some reason so the audio is messy. I have asked about this ingame but everyone seems more concerned about staying in character during roleplay than helping me. (No offence to actual helpful people, you just weren't online at the time)
That's not a glitch. You're not allowed to type the same thing twice. Try type the //set command, then / by itself, then type the //set command again.