I've previously used this installation of Garmin Express on this Mac.
Today, it asked me to sign in again - so I entered my email & password.
It then popped up a dialog with a ticking circle thingy, and the text "this may take a minute".
Half an hour later, it is STILL saying "this may take a minute".
What is happening, and how can I fix it?
And whilst I very much doubt this has anything to do with my Garmin devices, FWIW I have a Fenix 5X and an Edge 1040 Solar.