Weather Channel on-screen app disables number buttons on the remote
In diagnosing a problem with my AT&T U-verse remote, I discovered that the Weather Channel on-screen app (U-verse channels 225 & 1225) interferes with the function of the remote's number buttons. Once the app is on screen, the receiver no longer recognizes signals from the number buttons. One has to use the remote's channel up/down buttons to restore function. This has been a big problem for my efforts to give my 97-year-old mother a usable (ie simple) remote. I purchased a 3rd-party simplified remote (Flipper) that allows one to program favorites that can be navigated with its up/down buttons. But the remote sends number signals corresponding to each favorite channel, so just like the AT&T remote, the receiver doesn't recognize those signals once the Weather Channel app is on screen. So once Mom tunes to the Weather Channel (a favorite), she's stuck there.
Is there a workaround for this other than avoiding the Weather Channel? Is there a way to permanently disable the Weather Channel on-screen app?