Fastener auto-mate stopped working

I really like the feature that auto-mates a fastener from the tool box when you hold the mouse pointer over a hole. Well, at some point this completely stopped working. I don't know if I accidently turned it off or what. If I hold the mount pointer with a fastener over a hole and click, it will just drop the screw there with no mates.

Any help would be most definitely appreciated. Thanks all!

SolidworksToolbox