So now that I've done this and looked everywhere online I have a little more information.
I have a Monoprice 4X4 splitter (404E model I think)
I can select the blu ray, apple tv 2, and go back and forth between the two.
No problem.
I can start with everything off and select Apple tv 4 no problem.
If I switch to something other than Apple tv 4 and try to go back I get the hourglass flashing
If I go to another activity the other activity works fine
Back to apple tv 4 and its still jammed.
Any thoughts?
I've done everything above and read up on HDCP compliance (not sure if that has anything to do with this)
All my HDMI cables are Redmere high quality.
Everything is plugged in and set properly.
help...
Drew