Good to hear that I'm not the only one having this problem. It doesn't really bother me that much when I'm playing a DPS class (my warlock for eg), but when I'm on my tank it's an issue mainly because I have difficulty figuring out whether or not my Tclap/demo is up.
Well, the 5 stack SW:Pain (ignoring the single SW:Pain that somehow got lose) could be understandable assuming we had 5 or 6 spriests in the raid. However, we only had 2 at the most (and only 1 at times). Also, we ran with 3 rogues... so the 5 stack of rupture doesn't make sense either.
I "think" that this is a refresh issue because, the majority of the time, the illogical debuffs take over the exact debuff slot of my sunder/tclap/demo but somehow do not refresh the icons... but I'm not 100% certain.
Well, obviously the rest of the raid did... but regardless, SW:Pain/Rupture/Misery do NOT stack to 5 (that and you can't have a 5 stack; it doesn't stack at all and a 1 stack of SW:Pain at the same time).
I've been having a problem with PitBull for a VERY long time, and it's stayed with me despite completely rebuilding my UI from scratch 3 times. It's a little bit hard to describe in words, so here's a couple of pics.
- I magically become a rogue that somehow manages to apply a 5 stack of Rupture to the target.
- Before putting on my Wizard Hat and becoming a shadowpriest; SW:Pain manages to become a 5 stack, and a 1 stack separately. Shadow Vulnerability is fine, Misery becomes a 3 stack... and I'm about half way through my cast of Mind Flay... all as a warrior.
Please note that I am a warrior.
Basically, the debuffs occasionally screw up as above and generally the only way to fix it is to target another mob before going back to your original target. However, waiting it out sometimes works too. Spriest/Rogue debuffs are not the only ones to show up, I have also seen 5 stacks of TClap, Demo shout, etc.