Tvheadend

Hi,

IPTV channels are working all OK. I'm able to view them on different devices by using VLC, XBMC, Plex, etc.
But... I have one problem. If I'm watching IPTV channels on several devices and one of the devices stops watching, IPTV streaming is stopped on all other devices as well... If I start watching any channel on any device again then streaming resumes on all other devices.

Any ideas? 'Status' page is showing 0 for 'Input' and 'Output' columns.

TvHeadend version - 3.9.1977~gd347c3d~trusty on Ubuntu Server 14.10.