To be completed by the original poster:
CMS Version
v3.0.2
Player Type
Windows
Player Version
3.0.1
Issue
I’m getting the error SQLSTATE[23000]: Integrity constraint violation: 1062 Duplicate entry ‘423-19-2’ for key ‘PRIMARY’ when adding a playlist of playlists to certain layouts. Some layouts accept it. For example, I’m adding layout Site - Common (a playlist of common playlists to play on all displays in the entire site) plus a department specific playlist. On some layouts, when I click save, I receive the error above. On others, it accepts the playlist.