On November 5, 2018 at 19:16, andrewinboulder said...
Turned off CEC and of course the issue went away!
To get the best out of HDMI, corral and beat the holy living shit out of any "feature" other than getting video from one place to another.
A good answer is easier with a clear question giving the make and model of everything. "The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw