Runes of Magic US / AU

I was farming arrows in Kulech Nest, so I noticed one thing, sometimes when I do a one hit kill on a Kulech Myrmex Inspector and none of the Gloomy Spies move, it won't respawn, like in the screenshot bellow


So in some moment I decided to sell the loot and I noticed where that inspector gone. Instead of carry human bodies, the kulech mover was carrying a living kulech inspector from one side to another in a loop


This might lead for some clues to that zone. Other thing I notice a few days ago, some mobs from omega plataform and another ones from the factory were respawning in bloody battlefield.