Questie shows mobs on map only for "Hatefury Claw" but not for "Hatefury Horn".

Which version of Questie are you using?

Those mobs are included are listed in our data 🤔

I'm using 4.0.15 BETA. It's auto tracking as quest log but not appears at map and tooltip.
Anyway it's dropped from the same mobs. That's not a big problem.

Can confirm this is the case with 4.0.16 Beta as well.

There was a bug preventing to show more than 1 tooltip on a mob. This is fixed with v4.0.18!