Trade Site Error: 5-Passive Medium Cluster Jewels with Fasting Not Appearing on Trade Site

Simple one, attempting to list and search for 5 or less socket Medium Cluster Jewels with the explicit "Increased Flask Effect Duration", and the modifier "1 Added Passive Skill is Fasting" and they do not appear on trade site listings at all.

It is very strange, because 6-passive Medium Cluster Jewels DO appear.