Listsource Criteria Anomaly

[Mike Heth]

Quick Q for all you DM wizards out there.

I inserted my criteria into Listsource and all was well until...

I chose 2-5 bedrooms.  My list went from around 2500 to 500.  I don't understand this as I have SFRs, Duplex, Tris & Quads selected (there aren't many of the latter 3 in my area).  I even tried 2-100 bedrooms with the same result! 

Can anyone guess what the issue might be? 

Thanks a million!