Why my location city is crossed out even if I am connected to 4G and often have a Wi-fi?

[AC Question]

Hello. Please somebody explain why my location city on the home page under weather is crossed out. To fix that I have to go to weather setting "more" > "settings" > "use current location" I chenge ON to OFF and again to ON, it's restars and all fine. But why time to time my location automatically disabled and city crossed out. To make it fine every the time i have to do this procedure. It's not convinient.