When editing a recording entered in 2008 (pre-NGS era) linked to a work at about the same time, the current beta relationship editor makes it impossible to edit:

1. Recording is shown instead of the pre-NGS work (but recent works are displayed correctly);
2. Nothing happens when clicking on the pencil button (but the other buttons - remove, down, up - seem to work).

It is specifically related to pre-NGS works.

It happens with a pre-NGS recording here but I don't know what happens otherwise as I didn't find any recent recording that would be linked to some pre-NGS work.

Examples:

• with 1 pre-NGS work and 2 recent works:
  https://beta.musicbrainz.org/recording/2d175aab-a424-4cd9-8de8-6ec334382cb5/edit
  

• with 1 pre-NGS work only:
  https://beta.musicbrainz.org/recording/15ff1843-01ac-42ad-bd59-3d31ee02bedd/edit
  

In the second example, the pre-NGS work has the same name as the recording, but that is not the case in the first example.