Check if there is a mantis near the queen, they can walk past you as their attack trigger is a little broken at the moment. (They are invisible to your ants and minimap when not attacking.)it's say you need to defend the queen when none fight enemy going neer the queen.
Could be Wolf Spiderlings, they can dart to your queen then dart out your nest.it's say you need to defend the queen when none fight enemy going neer the queen.