A few days ago, I’d estimate approximately Tuesday, I got mind controlled during a fight. I don’t recall which one. Since then, I have periodically gotten “invalid target” errors when attempting to cast attacks at mobs (even ones that I am in combat with already), attempting to cast my arcane shield on myself, and when attacks hit mobs (even ones that I’m in combat with already). Sometimes this causes the cast to fail. Sometimes, I get the error and the target is damaged anyway. Most of the time that I get the error and should get an arcane charge, I don’t, but this also isn’t consistent.
Eventually, I got irritated and relogged. That didn’t fix it. So I restarted the client. That also didn’t fix it. I changed characters and none of my other characters have this problem (technically, I only tested 4 other characters, but come on). I eventually renamed cache, interface, and wtf, restarted, and retested with no addons installed. That also didn’t fix it.
And actually, I do remember dying since then. I made the mistake of going afk while in flight in Nazjatar. It didn’t look like there were rays around, but I was wrong.
Thanks! I searched for similar posts but didn’t find any. Your google fu must be better than mine.
I ran the scan and repair tool but that didn’t fix the problem, so I took off all of my gear and retested. No errors. So I put each piece back on and tested after each piece and didn’t get errors until the last item: Irradiated Undercoat. I removed the Irradiated Undercoat and the problem went away again, so it’s that that’s bugged.
So I checked the profile of the other person experiencing this problem and she also is wearing the Irradiated Undercoat.
I can live without wearing that for a while. It’s a bandaid rather than a fix, but I haven’t figured out that item anyway. (I like to figure things out rather than look them up, when possible.)