Nostalrius Begins - Quality wow vanilla realm (1.12)

So I am trying to complete the "Taming the Beast" quest and I finished the first one of taming a webwood spider just fine. I am trying to tame a nightsaber stalker now but it only gives me invalid target. I have tried both regular night sabers and nightsaber stalkers. I have logged and re logged. I have abandoned the quest and re got it. I abandoned my Webwood spider before attempting any of this. Any help would be greatly appreciated!

If anyone else is looking for the solution to this someone in game helped me. You need to delete the WDB folder in your game files. re launch client and it will work fine.