zealous excavator behavior issue

the zealous excavator specter (from the excavation map in act4) have a pretty weird and annoying issue that sometimes,one or multiple of them either stand still hugging an ennemy without doing their suicide attack,or casually running toward the south and start their attack when running into a wall in that direction,instead of targeting the ennemy properly.the second behavior isn't that much of an issue since their aoe can't be huge with the hulking minion support and the aoe for minions in the passive tree,but the first issue can be quite dangerous if you don't have a decent way to push the targeted ennemy out of them far enough or can just move far away enough for them to teleport to you and attack again.that specter is otherwise really fun to play around and that's sad to have to deal with these two issues when most other minions with behavior issues aren't that bad