Nostalrius Begins - Quality wow vanilla realm (1.12)

hi guys i think i found a bug but im not sure. ill started the quest in strangelhorn vale where i have to get 25 necklaces. i got 2 then i did a mistake and put them into the bank for i think 2 mins after that i put them back in my inventory and the quest showed up that i got 4 now. i didn´t thought about it but after 2 or 3 hours grinding these items i got 23. but now i farmed like again 2 or 3 hours an not 1 of these droped i think it is buggy now. maybe u can help me.

keep farming

im pretty sure now its a bug cause the guy where i can give b the q got a yellow question mark but i can´t finish it cause i only got 23 ;/

Abandon it and do it again. Shit happens.