https://classic.wowhead.com/quest=8284/the-twilight-mystery

This quest is completed by collecting Twilight Tablet Fragments found on the ground. Questie currently marks the elementals near the quest pickups as dropping the fragments.

https://i.imgur.com/LBAdcq5.jpg
https://i.imgur.com/a0KREmk.jpg
https://i.imgur.com/OUyJqWK.jpg
https://i.imgur.com/DUAgapC.jpg

Fixed with 2b7ccbe