Game Mechanics: charmed pets giving incorrect messages

[guineapig]

I first notice this in SolB the other night. I had a Beetle charmed and whenever I sent it to attack a mob it would say:

"that is not a legal target master" (paraphrased)
but proceed to attack it.

That I've seen before but it seems far worse now. (I want to say that it didn't start happening immediately, maybe after a few kills, but I might have just not noticed it right away.)

I will see one hit for x-dmaage followed by 3-4 of these illegal target messages, then another hit or 2, then 3 or 4 more illegal target messages.

Later on that night I had a spider charmed near fire giants and had the same thing happen during every fight.

I have screenshots but I can't post them till I get home.
Anyone else have this issue lately?

(On a side note it seems like most of those messages should actually be hits. When this was happening the DPS from my charmed pet was super crappy because, if I'm right, roughly 3/4ths of the time the charmed pet will simply refuse to hit the target then all of a sudden decide to hit it, then refuse again).