Edit issue button non-functional, gitlab.com

Summary

On gitlab.com, the edit issue button, for an individual issue (the pencil icon to top right of page - displays hint: 'Edit Title and Description') does nothing when clicked or tapped. This is the same on MacOS with Safari and iPad with Safari and two other browsers. It occurs with different Issues. This also means there is apparently no current means to delete an issue.

What is the current bug behavior?

The clicking or tapping the button does nothing.

Output of checks

This bug happens on GitLab.com