Issue comments not displayed in GitLab UI when the issue is imported from GitHub

Summary

I am using GitLab cloud. I have imported a GitHub repository a few month ago, it went well, any data (including Issue comments) have been correctly imported. I experience a comment display issue from the week of the 15th of November 2021: I cannot access the comments for any imported Issue. I get the Error message “Something went wrong while fetching comments” at the top of the Issue display screen. I can access the comment with the GitLab API, the data exist. It was working before the 15th of November, it seems to be a regression.

Steps to reproduce

Here is a link on a public repository issue - it comes from a contact who experience the same issue than mine Issue with the Comment display bug