2016-04-13, 15:59
EDIT: Nevermind. After doing a fresh reinstall of OpenElec, and trying out ATV4 screensaver before installing any third-party addons, the screensaver works fine. After installing a particular package of addons that is not allowed to be mentioned here, the screensaver locked up again. So it has something to do with one or more third-party addons that are causing the failure of the ATV4 screensaver to function properly. I just now have to go through the tedious process of finding out which addon or addons is the culprit.