Skeleton Warriors still summoned even with 100% Skeleton Mage conversion

When running 100% skeleton mages, 2 of the 12 mages will spawn as warriors. This occurs after the first 12 mages have been summoned and new ones have been summoned replacing old ones. My skeleton cap is 12 and I have 4 Dead Reckoning jewels so any recurring summons should result in only skeleton mages.





edit: not sure how helpful this is but you can see the furthest skeleton on the right is a warrior.