Club search New York IDPA

Searching for clubs on the practiscore website. Click on New York to see 130 clubs. Then click on IDPA to narrow down to 17 clubs. Notice Greene Rod and Gun Club is not one of the 17. However, de-select IDPA to go back to 130 clubs and find Greene Rod and Gun Club at the top of the list ok. Why does my club disappear when select IDPA despite all of my matches have affiliation set to IDPA, which is a required selection.