Large project import from GitHub fails

The import of a large GitHub project fails after several hours without a clear message why. I have tried to find out what the issue is but so far I couldn’t identify it. Any idea where to look and what settings to adjust in order to fix this? Thanks!

Screenshot 2023-08-27 at 3.26.39 PM

It may be relevant that I have checked all options on import because I want to get as much information as possible:

Just checking, @fjahr: Have you already reviewed the documentation on this issue?

Which version of GitLab is involved (navigate to /help), and how is GitLab installed (self-managed packages, containers, cloud-native operator/Helm chart, or SaaS).

Can you share the URL to the GitHub project that is imported? The numbers in the screenshot look quite large, maybe there are API rate limits that cause failure.