Players getting stuck on the mountain side

Typically this doesnt happen, but on current test version it is. The players in 1 spot are kiting mobs and get stuck, and 2 other spots they just get stuck on the mountain side. These 2 spots, are between zones.

happens in my game too, but only at one point.

I have kiting players too running around in the shallow sea area around my starting location. I killed the monsters manually which fixes it temporarily. I have that after I added some npc monsters around a quest objective to make the quest a bit more juicy. After completing the quest the players run away ignoring the monsters chasing them. When they are either killed or too far away or whatever mechanism that stops the monsters from chasing. After that they pick new targets or attack nearest player.