Other rider has become invisible from Riders Nearby.
Only myself displayed.
I create a new account for test. Riders Nearby appeared.
Because the other riders looked , network and software version is not a problem.
It is assumed that the my account has problem.
As a phenomenon in which the other relevant , does not display the information of watt in iPhone.
I get this all the time. According to Zwift via a support ticket it’s possibly related to your network connection, specifically latency between you and their US west coast servers.
Thank you for reply. I updated to the latest software version.
There is not a problem with the account for the test(new create) , the other riders of the comments I think that there is no relationship for this problem.