My Bose Soundsport Pulse works fine with the Bose app, but to connect the HR with any other app, I need to forget the HR connection in bluetooth, reboot my phone, and then reconnect to get the HR to work in other apps.
I have 13.3.1 on my iphone Xr, and 3.0.3 on the headsets. I have tried resetting the headsets multiple times, and it doesn't help.
If I just click on HR-Bose Soundsport Pulse in blue tooth, it says "Pairing Unsuccessful". So, I "Forget" the connection but it never shows again in "Other Devices". It stays under "My Devices", but it doesn't say "Not Connected" or show the blue "i" in the circle. I have to reboot my phone for it to completely leave my devices.