Archer bug. I'm the only person to notice it?

[Rizzo]

While grinding for 30-40 minutes the archer stops inflicting damage. He just fires his bow and nothing happens. This only happens with him. This happens during constant waves of enemies


Rpg

[ogonbat]

Happened to me too when Archer fight alone and others are out of range. But rarely if u move your characters often or make them fight together