With the changeover and release, the quest icon stopped working. I even deleted everything, all settings in the cache and manually removed it from saved preferences and did a fresh reinstall. Its just not working or showing up on any of the themes.

Quest indicator has a tendency to disappear from time to time, I couldn't relate it to anything yet though. UI reload always fixes it for me.

It shows up as expected for me when I try it. And just because this has been a pretty common solution to peoples problems lately, are you sure you are using and altering the right profile?

If that isn't it, I would want to know in what type of content do they not show up in? I only tried a WQ real quick and it appeared as expected during that.

I was doing world quests. I saw when I targeted the mob, nothing showed, then during combat, it popped on and then off again. I tried killing several mobs for world quests and it still wasn't showing and only flickered on and off the first time. I did use the import and profile and double and triple checked it. Just a weird glitchy behavior.

I can't say that I've ever experienced this myself, nor have I been able to reproduce it when attempting during some WQs today. And even after going over the code I can't find any potential issues that a reload could fix.

So if you do manage to find a way to reproduce this I would be quite interested.

Absolutely, I will send an update if I happen to be able to reproduce it, but it is very rare so it might be a while.

The quest indicator disappeared when I joined a WQ group. Did a /reload and it came back.

Maybe not the original issue but I found out that if the mob belongs to multiple quests, the indicator disappears when one of the quests becomes complete.

This might actually be related, the function that extracts the quest info was never set up to do more than get the first quest it could find from the tooltip, regardless if it was completed or not. So if you completed the quest that was first in the tooltip it would think that you were done with that mob.

I'm honestly quite surprised I never experienced/noticed this issue myself, or that I never considered it when adding the feature.

But it should handle multiple quests properly now as of 6.23.3

Today I was finally able to test this and can verify that if a mob is associated with multiple quests, the indicator won't disappear when at least one of the quests is still not complete.

当shift+v 开启了小队内友方血条的时候，那个暴雪默认风格血条右边的数字等级显示位置会偏左边，而不是正常显示在最右边的框框里。

i had also an issue with quest icon not showing on tooltip of mob, but not related to multiple quests for the mob. it was on the first quest i had for this one.
but after reloadui the quest indicator on nameplate showed up.

wow classic, german language, addon version: 1.13.2.36

The Classic version doesn't have a Quest indicator built-in, because it's basiclly not doable without also becoming a quest helper addon.
So what you are referring to is added by another addon, probably a quest helper addon.

you are right i think it is questie adding the information :)

v8.2.5.5，Enable "Show Quest Icon on Units"(显示任务目标)
Some mobs still don't have the Quest Indicator.

This should be fixed in the latest release. This unit has a slightly different default tooltip layout than most units, so hopefully fixing this unit didn't break any others...

Did Blizzard change sth. in 8.2.5?

They changed the layout of the quest info in the tooltip making it slightly more annoying to figure out which line contains the quest information, or if it even if there is any quest info there at all.

This guys quest in particular should be fixed in the latest release. I tried a slightly different approach and excluded anything matching the units name, but since that is also the quest name in this case it excluded the relevant parts as well.