Waze forum

Hello,

My wife uses the iPhone 4S and after about 10-15 minutes of waze use, the screen slowly fades to black. Once that happens, the app has to be reloaded. It starts going black with the vehicle circled white before it fades out quickly. Anyone having these issues and found results? Thank you

There's also about a dozen other threads posted about it separately.

It's a known issue.
Just wait for the next release (which should come very soon)
Yes. Exit and reloading the app is (more or less) the only thing you can do. If you want to know more: use the forums search (or read the "ios3.7.2 official feedback thread" it's all discussed in there )
BR,
Omba