Quagga OSPFd DR election incorrectly

[A999]

Hi guys,

I'm setting up our network with PFSENSE servers to use OSPF routing protocol. My design can be seen as:

I'd prefer to use leased lines over OpenVPN instances, and PFS1 server will be the hub.
My OSPFd configs looks like:

PFS1

• Global settings: Redistributed connected networks [checked]
  Redistributed kernel: [checked]
• Interfaces: OpenVPN: metric 30
• Interfaces: leased: metric 10

Other PFS

• Global settings: Redistributed connected networks [checked]
  Redistributed kernel: [checked]
• Interfaces: OpenVPN: metric 30 AND router priority: 0
• Interfaces: leased: metric 10 AND router priority: 0

OSPF status shows everything is up and running, but the DR isn't elected PFS1 as I expect.
How can other router be DR when:

Router Priority: … 0 will cause the router to not participate in election.

I appreciate your comments.