You are replying as if this is an odd happening, a one-time thing one user is experiencing. It is not!
This is an issue Roku devices suffer from and have been ALL the time! I have two of them now, and had older ones before. And they all did and still do this.
Any app that you don't use every day, gets removed and it forgets your login info. Do you know how annoying it is to input a password via remote? it's aggravating to deal with this issue.
I wish I could return my device for a refund - but of course, you have a ready "No" response ready for me.
If his roku is like mine, it doesn't matter what app. I've changed all the settings to no avail. A max of 15 to 20 minutes and every app shuts me down. Some people have said don't plug into the usb on the TV. I'm not! Some have said you charging box is weak! I've bought new and nothing changed. It comes up with a "thinking" message in the upper right hand of the screen and it shuts the apps down. I'm completely frustrated and I'm about to go to some other type of streaming!! ROKU,fix your problems!
Thanks for posting here in the Roku Community!
We appreciate you letting us know about the issue you've encountered, and we sincerely apologize for the trouble. For us to better understand the issue, what are the specific channel/s that are affected by the issue? Are you seeing any error code when the issue occurs? What are the steps to reproduce the issue you're seeing? In addition, what troubleshooting steps have you taken to resolve the issue?
With more detailed information, we'll be able to assist further.
All the best,
Kash