There are currently 3 flags for Insecta (incidentally duplicates) that aren’t showing as resolved when attempted to be marked as such (at least 2 curators have attempted to do so).
I don’t think there is a restriction on the same user creating multiple flags on the same entity (unless 2 is allowed but it blocks at 3). I’ve seen it plenty of times. If there is such a restriction, it is not working.
Tony, if you are the one who looked at the link and dont need the example, you can try resolving the 1st of those. That request is done, if it closes successfully, that should close that line of inquiry