I'm doing some work on Matthew 28:16-20 and ran a PG on verse 17 (bottom left of screenshot).
Only two commentaries appeared in my "Best" section - these are commentaries I have tagged and I have 10 for Matthew, some multi-volumes so only covering part of that Gospel.
When I run a PG on verses 16-20 (top left of screenshot) I get seven results which is more what I was expecting.
But I don't, for example, get a hit for France's NICNT commentary even though it does have a milestone for that verse (middle and right of screenshot).

This doesn't seem right.
Any ideas what is going on?