No they don't. I've always used MD+MS combo when they are far up in the air and always worked.
Originally Posted by Koenig
Remove all Misdirect related glyphs if you have them.
Also make this macro instead:
Just put your bat tank to your /focus and it should work always, I don't really like the [target=X](X=player name) since you often have to change the macro. Setting the MD target of that fight to Focus is the easiest thing you can do.
/cast [@focus, exists] Misdirection; [@pet] Misdirection