This happens on different spots (Jotun, Hagbui,Forrest Snakes in Vanern). Doing mobs in a row, most the respawn is so quick, that after 3 mobs i can go on with the first one. After a time, when i start pulling with my instant dd, suppets start attack this target on their own in the moment i pull (without any command (pets on defensiv), but not the commander, he remains defensiv. If i then click attack command, he joins the fight too. Seems to be ever the same mob then (from this 3 mobs i do in a row).