According to this Wowhead post, you’re supposed to receive rep for 5 lore objects you find. I did the 5 in ringing deeps and did not receive rep. Has anyone else experienced this? Here’s the article in question:
Khaz Algar Lore Hunter - Achievement - World of Warcraft (wowhead.com)
This is definitely bugged since the last weekly reset. Now this achievement isn’t progressing for any of the items when you find them. I was hoping it would be fixed today… but it is not.
Currently the interactable items in zone 3 are bugged. (I haven’t messed with zone 4 yet)
I got my achievs for zone 1 and 2, but zero progress for any of the scrolls or books.
Wowhead is saying the same as well.