I wanted to run a clock that would give myself a potion effect for 1 seconds "/effect @p 14 1 0", it worked however when the clock stopped and the potion effect ran out; in the inventory it displayed 0:00 but did not disappear. I then tried removing it with "/effect @p 14 0" and it stayed despite the command block displaying "Took Invisibility from [Player Name]"
Is this still a concern in the current Minecraft version? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases. If this has been done, we can reopen the issue.
Keep in mind that the "Resolved"-Status on this ticket just means "Answered", and that we are waiting for further information on whether this issue still exists or not. We will reopen it as soon as the requested information has been delivered.