The record hints I am getting are already linked to other people.
This has only recently (a few weeks) been happening. I am guessing that the algorithm has been messed up. Maybe from people refusing to attach hints that they should, because they don't want to attach duplicates, or other reasons. So they are calling things Not a match, when they are in fact correct hints.
For example, today I got a record hint for the 1950 census, when that relative died in 1930.
Hope this can be repaired.