Roku Premiere+ (7.5.1)
In the week or so I've been noticing that the HDMI connection with the receiver will drop out for a fraction of a second. The audio doesn't play briefly and the display of the receiver flickers briefly indicating that the HDMI audio connection dropped/changed briefly.
This happens maybe every 10 minutes or so, apparently randomly. This is just recently happening so I think it must be a software issue. If it was hardware it should have been present from the moment I setup the system back in late 2016.