Cannot view a beta channel in testing mode?

Can anyone tell me why I cannot view this test mode in beta? When I open the app on Roku TV to see it, it opens and then kicks me out? So I cannot even see the channel content? Help. I have another developer who built it and he has no problem testing in live mode?

Try removing it (highlight it on the Home Screen and press * → “Remove channel”), reboot/restart (don’t skip this step), add it again (I assume you did that via the website).