Recently I started doing some random bgs again and I noticed that after entering in ghost wolf form the game automatically cancels it after a few seconds. I have the glyph to increase the speed 60%, so maybe there is a bug with that? instead of cancelling the effect it gets you out of ghost wolf form?
Does it make the same dismount sound that entering a building does when it takes you off a mount? They may have messed up indoor/outdoor flagging in BGs.