IAH Ground feeds have no audio

[Ariffraff]

With all of the bad weather around IAH I've been spending some time "listening" to IAH.
I'm wondering if the ground feeds have changed or if there's some other technical difficulty. I listened to all 3 ground feeds for 30 minutes during the day and heard nothing not one single call.
SO is it me or is something going on with these feeds?

[wiedehopf]

They are pretty new feeds i think.
Can't remember them being there last time i checked.

Anyway right now i have audio on all of them (controller is multicasting).
Also heard a jet at Atlantic Jet Center on the North feed.