I have set all my privacy settings to "Everyone" but still cant see myself on the segment leaderboards.
The ranking (in blue) says "Rank -".
Please can anyone help?
My default setting is connections only, so I normally see exactly what you describe if I cross a segment. I then go set the activity privacy to everyone and my rank appears. I seem to recall it noted "this is not your fastest time" or something to that effect, thus indicating there was no need to switch my settings.
Garmin appears to be in the process of integrating (?) Garmin segments with Strava, so it's possible that the segment feature is not working as expected right now.