I don't know if there's a fix, other then trying to NOT use HDMI between the receiver and TV1. (Yeah I know, HDMI is best quality)... I had a Logitech review hooked up between my 722k and TV (via HDMI) and the connection confused all three components... If the TV was off, then there was no sound to the amp (even though it wasn't connected through TV). If the Logitech went into 'sleep mode' then the 722k would take several minutes to start recording DVR events (and, if it did, would often reboot mid-recording). TV2 would not come 'on' sometimes if TV1 was 'off'... Other issues too... Dual mode? ...that's what ours was set to also. We tried single mode but same issues.
It's funny that you mentioned TV2 because that seemed to be where most of our problems occurred when we had the Logitech hooked up in the config. ...sounds like an issue with HDMI communication between devices. I'm no expert but, apparently, the HDMI connection also sends/receives more information than audio and video signal (device make, model... power state... resolution settings... etc.) I imagine that the problem is occurring. So if you're HDMI connection to BD-Player is 'hot' then the TV is turning off the connection to the receiver.
I know this does not 'solve' your problem but sometimes just thought it would be helpful for possible troubleshooting.