When I’m using the Go app on my iPhone, the screen goes dim after a variable time - could be an hour, could be 5 minutes. It goes dark to the point of invisibility. The only cure is to force the app to close and then the screen slowly brightens up and I can restart it. This is not new to IOS 13; it’s been going no matter what version of IOS I’ve been using. This is the only app where I experience this. I spend a lot of time on the road and often I give up and switch to Waze (which I hate) but at least it stays bright.
Anyone have any ideas please?