My (Samsung Galaxy Xcover5) phone updated to the latest One UI 6.0 and OS 14, and now in the Camera app, the flash seems to use the second of the two lights on the back of the phone (the narrow beam 'torch') instead of the first (the broad beam 'flash'.
This means that all photos have a over-illuminated centre where the 'torch' beam is, and the rest of the picture is dark, instead of the even lighting from before. I tried resetting the app (Reset settings, Clear all data) but it still behaves incorrectly.
