Jira Service Management Github Integration

Hi, I managed to set up my Github account and repositories in Jira Service Management with the Marketplace App “GitHub for Jira”, Sync is completed and shows 3 repos.
The repos, commits etc. should be displayed under “Development” Custom Field, which I added to the view screen of my Jira Service Management Project.
The “where is my field?” helper tells me the Field should be visible in the Issue but it is not.
Is it a bug or is it intended that the App does not work on JSM, but only on Jira Software?
Thank you,
Best regards