I think it's a bug too. Last night when I switched from antenna I got the background screen on the home screen and no icons at all. I went back to antenna and it was just a blank screen. I finally had to unplug it and everything came back afterwards. This is really annoying and TCL is no help at all. I'll never by another tv of there's again!
I will occasionally see the same issue with Prime Video on my 32" S-Series TCL Roku TV. Others have mentioned deleting apps to save some memory resources, but I have 60+ apps on my S-Series and it only happens rarely and only with the Prime Video app. When it does occur I find that doing a RESTART will correct the issue. SETTINGS -- SYSTEM -- POWER -- SYSTEM RESTART -- RESTART. The same as pulling the plug, but you just need your remote to get it accomplished. Probably not a bad idea to just perform a RESTART/REBOOT of this older device weekly to clear out any cobwebs that build up. I still think this is a Prime VIdeo / Roku OS bug more than deleting a large portion of the apps you have installed.
I will occasionally see the same issue with Prime Video on my 32" S-Series TCL Roku TV. Others have mentioned deleting apps to save some memory resources, but I have 60+ apps on my S-Series and it only happens rarely and only with the Prime Video app. When it does occur I find that doing a RESTART will correct the issue. SETTINGS -- SYSTEM -- POWER -- SYSTEM RESTART -- RESTART. The same as pulling the plug, but you just need your remote to get it accomplished. Probably not a bad idea to just perform a RESTART/REBOOT of this older device weekly to clear out any cobwebs that build up. I still think this is a Prime VIdeo / Roku OS bug more than deleting a large portion of the apps you have installed.
blade_005's solution fixed the issue I was having for my Roku 55C807. I was able to hear the audio for inputs in HDMI 1, 2, or 3, but the video was not displaying. Restarting through the Power menu fixed this problem. Thanks!
I was having this same issue. Not sure if using Amazon Prime is what caused the app icons to disappear, but using the reset option fixed the issue.