I have a feeling that some folks that are having (cable related) issues is due to EMI interference that may be affecting the signal from the adapter to TV.  Since the CA-1070 is an active adapter, there may  be a possibility that EMI interference could be being introduced unless the adapter is filtering as well.  I can say that the cable with Ferrite Choke worked when 3 other cables worked up to a certtain point.   Some systems may not introduce as much interefence as others and also depends on if cables cross power cables from PC or other devices..
Amazon Basics Std cable: 4K/50Hz and 4:2:2 color
Amazon Basics High Speed: 4K/50Hz and 4:4:4 color (unstable)
HDMI cable with good sheiding and Ferrite Choke:  4K/60Hz and 4:4:4 color (stable)