I use Lumix Sync quite a lot (I have iPhone 12 mini). When you want to copy a photo from the camera it first asks you if you want to connect to the wifi. Then it connects and the icon starts to "circulate" and you get the list of the photos. Very often it just keeps circulating and nothing happens. Then I switch the camera and the app off and start over. Second time it always loads the photos just fine. You might have only one photo in the camera. Anybody with the same experience?