My Edge 810 used to upload via the GC Mobile App (Huawei P9) without any problem. It now is still paired with the phone, but the data are no longer uploaded to GC via bluetooth.
The device appears on Garmin Express, but neither in the mobile GC app, not in the full version installed on a Mac laptop. All activities sync fine when I connect the 810 via the cable.
I did a reset of the 810, but it did not change the situation.
Any suggestions?