Healer spot light also show spec that is not healer. For exaple i was today in battleground and neat plates also show shadow priest as healer althou he is

dps

Either you're referring to a function of another addon, or I simply don't understand the issue described. Neatplates doesn't highlight healers in anyway.

i checked enemy spotlight mode on, enemy healers. So this low opacity triqangle betwwen namplate and characher should just show on healers, didnt show on other dps classes, in right corner warlock dont have it, but shadowpriest have it, most left one.

Oh, right there's an option for enemy healers in the opacity spotlight completely for that existed for a second. But just to make sure we are talking about the opacity of the enemy here right? And not the border highlighting? Because the spotlight option in the Opacity section only controls the opacity of the frame.

However, after looking into this a bit it doesn't seem like the roles update unless you have the scoreboard open. Not sure if this is how its always been or something that was changed at one point. So it's possible that once a new player joins it doesn't get assigned the correct role. I'll have to look into that part, but will have to confirm if this is what was happening here or not.

I dont talk about border nameplate highlight, i talk about that light like i said between nameplate and characters (not cast bar). So basically need that options when enemy team come to fight and you can immediately spot who are from them healers. And like i said it problem on this image that shadow priest look like he is healer. and yes we talk just about enemies

light in those triangle are should apply just on healers and it apply on shado wpriest ( priest have healing specialization, talents) but shadow priest it not healer. So shadow priest should not have that triangle opacity light, like that another priest and paladin. He need to look like warlock (in right corner of image)

That cone is part of the higlighting for the threat border,

which as I found out after some digging in the code is indeed supposed to highlight healers in PvP.

However, I still think the issue is what I previously stated, the roles only get updated when the scoreboard is opened. I'll look into this and see if this is a restriction on the scoreboard or if it's simply just an event name has been changed that used to trigger this.