Since a few days (but I'm not sure) I get rather bad results for ''Suggested recordings'' at adding a new release.
I don't know how the suggestion is done, it was not always perfect in the past, but for me it looks more worse since a few days.

Example: I add a new release (a VA compilation) with track "Schweigen hilft nie" (3:27) by Xandra Hag.
There exists only one recording with exact this name by this artist with length 3:29 but this recording is not shown in the list of suggested recordings. Instead I get recordings from other artists, with other titles or with a bigger difference in length. This looks not good for me. I expect to get this recording, top-ranked. I can't see a reason why it will not be suggested (and for me it looks like a bug).