Help & troubleshooting for channels on your Roku device, including adding/removing channels, logging in to, authenticating, or activating a channel, channel-specific playback issues, assistance contacting channel publishers to report issues, and adjusting channel-specific settings.
These apps won’t open. They just return me to the home screen.
The usual first step is to reboot the Roku, assuming you haven't already done so. Next, remove the channel/app, reboot the Roku (and don't forget this step), then reinstall. I don't use Netflix, but I use the other two often, so there's nothing specifically wrong with them.
Dan Roku Stick (3600), Ultra (4640), Ultra (4670), Premiere (3920), Insignia 720p Roku TV, Sharp 4K Roku TV, Nvidia Shield, Windows 10 Pro x64 running Serviio and Plex on a wired Gigabit network.