Navigation to project snippets is broken on GitLab.com

On GitLab.com, in a project, if we go to Snippets, then any link to a snippet seems to be broken.

Demo: Screen_Recording_2019-12-09_at_16.39.44

– notice that "broken" links are /snippets/SNIPPET_ID, while with org/project prefix (/OPG_ID/PROJECT_ID/snippets/SNIPPET_ID) it's working well.

This seems to be either a permissions check issue or a problem with links themselves. I suppose it's the former because recently I was able to navigate to projects snippets created by me from the top menu (More->Snippets), where URLs, as I remember, were always /snippets/SNIPPET_ID