I did git clon job from the Redmine server and set configuration at settings - repositories of A project.
Also I set configuration (settings - integration) at the Gitlab.
Then I can see information correctly except some push events.
This issues are same with other projects.
I thinks not-synced events are recent events.
1 new event is not synced from A project, and other project has several recent not synced events.
Why some push events doesn't sync?