Heya Dave. The solution, in case you haven’t fixed yet, I got from this thread from one Elvenbane. Quest objectives not showing on mouse-over
Apparently DBM hides quest objective tooltips on boss fights by default. That bugs out and doesn’t return. So disable that function all together, if you want.
For now use /run SetCVar(“showQuestTrackingTooltips”,1)
that command is what restored functionality for me. GL!