Import project from GitHub gets issues & wiki but no source

I’m new to GitLab and am coming from GitHub. I’m using hosted as a replacement for

I have tried twice to import private GitHub projects using the “Authorize access to GitHub repositories” method. Each time, after taking a while, GitLab says that the process is complete, but when I look at the project all I see is “The repository for this project is empty”. However, all of the Issues and the Wiki have been imported

Any advice on how to complete the process or what could have gone wrong?