Firewall block not working with alias (List of IP's)

[Daves_nt_here]

I have a rule setup that blocks access from the LAN(NWIC1-NWIC2) to a vlan(PlexNet).
If I specify a single IP for the source the rule works but I have a dozen ip's to block so I added them to an alias.
Changing the firewall rule from single IP to the defined alias list blocks everything to the vlan.
It should block everything from the lan > vlan except the specified hosts in the list.

Interface- LAN
Direction- in
Protocol- any
Source Invert- Checked
Source- Admin
Destination- vlan