Why are you even asking this? Many people, myself included have provided the requested info, and there is no follow up.
Why does support keep asking for more info, but provide no answers?
had same problem cover stopped working, just remove the app shut down phone (not restart) then restart and re-install app with this method cover now working fine. hope this helps.
just incase, to remove app go to play store search "samsung led cover" open this page it will say uninstall / open hit uninstall.
Same problem, started after most recent android update/upgrade.
Can edit the LED notification icons, and assign them to both app notifications and contacts - but neither show on the cover (used to be able to press the power buttonwiththe LED folio case closed to show clock - that is also not working). Tried rebooting, cleared app cache, confirmed notifications active for apps assigned to the LED folio case notifications but none work since update.
Some apps security settings (permissions) got reset after last update too, could this be related?