In quests made in versions that were released before the enemy editor was implemented, the BS Patra enemy and its eyes use ESP 2. Well, there is a little compatibility issue here. In pre-enemy editor quests, as while the BS Patra enemy itself uses ESP 2, its eye CSet attribute is set to 8, making the eyes use CSet 8, while that attribute should be set to 14 so that the eyes would use ESP 2 like the enemy itself.
BS patra eye cset wrong in pre-enemy editor quests
OK, fixed.