In current state of firmware the simplelink function will disable itself when switching through sound output quick menu.
I am trying to switch between TV output and External Aux output (headphones) as I don't use my home cinema speakers all the time. But between those 2 options there is a "optical" output which cannot be enabled at the same time as the HDMI-CEC/Simplelink funciton so the TV will disable it BUT not re-enable it after you move to external aux output (or any other not conflicting with the settings).
This is highly frustrating as you must one again navigate to the full settings menu / general / hdmi-cec and enable it manually.
So I am making this request.
Thank you