Can't see other player's spell effects when they cast on other PC/NPCs

[mropey]

So this has been driving me nuts enough lately that I decided to post. It has been going on now for maybe a month or 2..

I can see all of my own spell effects. I can see spell effects from other players when they cast spells on me. I CANNOT see spell effects when PC's cast spells on other PC's or NPC's.

It has bothered me mostly when tanking and I can't see which mobs an enchanter is mezzing, or when someone is pacifying a mob, but really any instance when you need to see what someone is casting or casting on. Any help would be excellent.

I have turned on all spell effects, max opacity, max density, /showspelleffects on, etc....

Someone help!