On G17 ku the 4 ABC mux are fine but when i blind scan the sat certain feeds look like smeared as if you wipe a rag over a freshley paint portrait (this is intermittent) using a Manhattan DJ 1997 HD. Any idea?thanks
h.265 shouldn't produce anything recognizable on a h.264 decoder. h.265 uses what are called Coding Tree Blocks where h.264 uses Macro Blocks. If the chipset supported h.265 but the firmware didn't, I'm not sure what you might get but it wouldn't be a blurry image. Smearing is something that pretty much has to happen after decoding as the data wouldn't be decodable if it were that corrupt. It would present as tiny corrupt blocks rather than an out-of-focus image. Compressed digital images either are good or they are fragged.
That your modulation is switching back and forth is very odd as QPSK isn't enough like 8PSK that there should be confusion.
It could be that the motion compensation technology is going ape for some reason and is working overtime to smooth out what it thinks is a very busy frame.