Sync issue with android app and strava

Thanks for quick response.
Sorry, I’m TD, not TR (i’m coming from TrainerRoad…).
I’ve pushed the strava sync button many time, but doesn’t sync.
In the app, when I save the workout without connection, the SHARE page stay empty even when I connect to internet, but when I wait to have intenret to save the workout, the SHARE page is populated with a picture of the workout (if t can help to diagnosic !).