[BUG] - Found in organization country location selection

I have found/facing a bug in my organization settings page.
This organization was newly created and i was just setting things up.
When i try to change the Location after twitter username I’m getting this bug.

github after

I’m using custom themed official firefox( 91.0.1) on Kali linux Gnome (5.10.28-1kali1)
faced bug on Sign in to GitHub · GitHub