Samsung Galaxy Watch 46mm - Strava doesn't use gps
I installed Strava last week on my Cubot King Kong 3 phone, that has Android 8.1.0 and works fine. And I was also able to install the Strava app on my Samsung Galaxy Watch 46mm and I got I working.
I installed it on my watch on April 24th and the last activity it recorded was on April 26th. After that date no activity is recorded.
I checked GPS settings on the watch, was active. I did a software reset first trying to fix it. Didn't work. Tried a hard reset. Didn't work. When I start the Strava app on the watch I notice that the gps icon is greyed out, when I start an activity (outdoor walk) it only records time and heartbeat and when I want to save it shows "Strava needs a longer activity to upload. Do you want to discard this one?".
Tested GPS with a gps tool and I saw coordinates. So gps is working.
Any ideas how to fix this. Or is the Strava app for Samsung Galaxy watch buggy?
Update: It is even getting more strange. I had an activity started on april 30th, outside walk, no gps was there, and no walking time. When I picked my phone this morning I noticed Strava added an activity which was showing the route and time I walked.