Why the relaionship between 3 widgets not work correctly

I have created a dashboard (attached ) that is include 3 widget :

1- Widget one show all Datastores

2- Widget two with select each Datastore it will be show VMs that reside on that datastore

3 - Widget three with select Datastore from widget one it had to show all disks on the unity that assign to that datastore

now widget1 and widget2 work excellent with select datastore on Heatmap it shows vms on that datastore but not show unity disks' that used for that datastore

I am using vrops8.1 and also install ESA for monitor Unity

Would you please import my Dashboard to your Environment and check it ?

BR