Minecraft Username: rNin Brief Description: "/mcrank" cooldown message missing. Instructions: Type "/mcrank" within 1 minute after typing "/mcrank" or "/mctop <skills>". How many times did you recreate this?: Every time. Result: The message shows "You must wait {0} seconds before using this command again.", the "{0}" part doesn't show the real cooldown duration. Expected Result: The message should show "You must wait 60 seconds before using this command again.", or other durations under 60 seconds, which the message should match the actual cooldown time. Evidence: N/A
Yes this is a known bug. I've reported it to @nossr50 and it should be fixed on the next version of McMMO. It will likely be a good month or two before we're running the newest one as it is under major development.
I'll be fixing as many bugs as I can before 2.1.0, we have over 150 open issues so I may not get to all of them. Stuff like this should be easy to fix though.