Shared library disappears from TV app

My wife’s iPad connects to home sharing with my Apple ID, which is the same ID that the shared iTunes library is using. Recently, when I start up the TV app, it doesn’t see the shared library. If I go to Settings, log out of Home Sharing, and then log back in with the same ID, and then start up the TV app again, the shared library is available. But it won’t stay there, and I’ll probably have to do the same thing again the next time.

Any suggestions?