That’s interesting. Are they saying it’s because of the receiver?
I have 10 AV Pro baluns in my house doing 4k all through CAT5e. I did have an issue where I was getting random black outs, like sometimes after 30 min, some times after an hour, then a random one again on 8 of the 10 baluns. They RMA’d all 8, and the replacements don’t seem to have the issue at all. Although 1 of the 8 introduced a new problem where I was getting blackouts and some snow in the image every 30secs to 1 min. We determined it was a bad HDMI port on the balun, so they are currently RMAing that one now.