The device transfer feature has always been very hit-and-miss. I probably get a 50% success rate.
Since 5.50, this has dropped to 0%. I have a suspicion it's not the firmware, but the type of course I'm trying to transfer. I'm using the new Strava 'auto-transferred' courses that contains some starred, embedded segments.
Even though the receiving device say "Transfer failed, try again", there is a partial course, that happens to end at embedded segment.
Has anyone else witnessed this?
PS We are both paying Strava members so have Live Segments on our devices.