Lab 4 Task 4.1

I'm having a weird issue that i can't seem to put my finger on what's wrong.  Everything is working except for XR2 advertising it's own loopback to R4:

RP/0/5/CPU0:XR2#sh bgp vpnv4 uni neigh 10.0.0.4 ad
Sun Dec 15 06:12:45.853 UTC
Network            Next Hop        From             AS Path
Route Distinguisher: 10.0.0.2:1
172.16.0.2/32      10.0.0.2        10.0.0.2         i
Route Distinguisher: 10.0.0.5:1
172.16.0.5/32      10.0.0.5        10.0.0.5         i
Route Distinguisher: 10.0.0.19:1
172.16.0.19/32     10.0.0.19       10.0.0.19        i

It IS advertising it within AS 1000:

RP/0/5/CPU0:XR2#sh bgp vpnv4 uni neigh 10.0.0.2 ad
Sun Dec 15 06:15:43.414 UTC
Network            Next Hop        From             AS Path
Route Distinguisher: 10.0.0.1:1
172.16.0.1/32      10.0.0.1        10.0.0.4         2000 i
Route Distinguisher: 10.0.0.2:1
172.16.0.2/32      10.0.0.20       10.0.0.2         i
Route Distinguisher: 10.0.0.3:1
172.16.0.3/32      10.0.0.3        10.0.0.4         2000 i
Route Distinguisher: 10.0.0.4:1
172.16.0.4/32      10.0.0.4        10.0.0.4         2000 i
Route Distinguisher: 10.0.0.5:1
172.16.0.5/32      10.0.0.5        10.0.0.5         i
Route Distinguisher: 10.0.0.19:1
172.16.0.19/32     10.0.0.19       10.0.0.19        i
Route Distinguisher: 10.0.0.20:1
172.16.0.20/32     10.0.0.20       Local            i

I can't think of what could be causing this behavior as it's sending all other routes except it's own.  I've attached what i think is the applicable configs below, if anyone has any ideas i'd appreciate it!

XR2:

vrf FOO
 address-family ipv4 unicast
  import route-target
   1000:1
   2000:1
  !
  export route-target
   1000:1
  !
 !

router bgp 1000

 address-family vpnv4 unicast
 !
 neighbor 10.0.0.2
  remote-as 1000
  update-source Loopback0
  address-family ipv4 unicast
  !
  address-family vpnv4 unicast
   route-reflector-client
  !
 !
 neighbor 10.0.0.4
  remote-as 2000
  ebgp-multihop 5
  update-source Loopback0
  address-family vpnv4 unicast
   route-policy PASS in
   route-policy PASS out
   next-hop-unchanged
  !
 !
 neighbor 10.0.0.5
  remote-as 1000
  update-source Loopback0
  address-family vpnv4 unicast
   route-reflector-client
  !
 !
 neighbor 10.0.0.19
  remote-as 1000
  update-source Loopback0
  address-family vpnv4 unicast
   route-reflector-client
  !
 vrf FOO
  rd 10.0.0.20:1
  address-family ipv4 unicast
   network 172.16.0.20/32
  !
 !
!

R4:

vrf definition FOO
 rd 10.0.0.4:1
 !
 address-family ipv4
 route-target export 2000:1
 route-target import 1000:1
 route-target import 2000:1
 exit-address-family
 !
router bgp 2000
 no bgp default ipv4-unicast
 bgp log-neighbor-changes
 neighbor 10.0.0.20 remote-as 1000
 neighbor 10.0.0.20 ebgp-multihop 5
 neighbor 10.0.0.20 update-source Loopback0
 !
 address-family vpnv4
  neighbor 10.0.0.20 activate
  neighbor 10.0.0.20 send-community both
  neighbor 10.0.0.20 next-hop-unchanged
 exit-address-family
 !
 address-family ipv4 vrf FOO
  no synchronization
  network 172.16.0.4 mask 255.255.255.255
 exit-address-family