Something that could help with debugging: cd2805a6148a49e28f87a1f9d1043ffc
Thanks for the detailed report!
It looks like the importing process failed because we received an unexpected response from GitHub. I don't know exactly what the problem is yet, but I've added more logging on our end to find out.
Can you confirm if the issue happens consistently? Thanks!
We're closing this issue due to inactivity. If there's still a problem, please let us know. Thanks!