Freeze at launch almost always

Freeze at launch in 95 % of the cases on my iPhone 5c. It is going on for several weeks. The ONLY way to start it is : 1) force quit the app (mandatory) 2) in the settings app, disable localization for pokemon go 3) start pokemon go 4) once pokemon go started, go to the settings app and reenable localization 5) go back to pokemon go : it should work. Would be a fine idea to fix that bug...

sténopé about Pokémon GO, v1.27.4