stop video streaming on air for ios

Hi,

publishing live streaming on flashplayer, and playing on air for ios.

when I attach mic on flashplayer, video is freeze on air for ios.

and then, diattach mic, video is playing smoothly...

is any idea?

environment

flashplayer 12.0.0.44 (H.263, nellymoser)

AIR SDK version 4.0.0.1628