The display switches to landscape mode, but is no longer playable due to a freeze, only after a restart the game will run.
Is rarely reproducible.
iPhone 14 Pro, iOS 16.2, Ingress 2.106.1
Easy, don't use Landscape mode...
I had this happen today 27/05/2023
Was playable in landscape mode, would rotate smoothly between landscape and portrait. Lasted about 2 minutes then reverted to stay in portrait mode
iPhone 12 Pro, iOS 16.4.1, ingress 2.116.2