Using a Hero4 Black. Phone/camera worked well together with the previous app. Since downloading this one camera fails to connect with phone no matter what I do. Tried resetting phone and camera, turning off all the various advanced WiFi features on the phone, checked the camera firmware was up to date, reloading the app and starting again. Nothing works. Phone can see the camera Wifi, and Bluetooth signal. Just no connection via the app. Very frustrating. Phone is Samsung S10, with latest updat