L2vpn xconnect mac issue?

Mac address from SW02 can't be learn from SW01.

Setup: SW02--PE02--VC123--PE01--SW01

(XR920)sw02#sh bridge-domain 108

BD mac addr type ports

----------------------------------------------------------------------------------------------

108 609c.9fe3.6548 DYNAMIC Gi0/0/3.Efp108

108 88a2.5eb7.7a76 DYNAMIC Te0/0/24.tefp100 (MAC FROM SW01)

(IOS)sw01#sh mac address-table DY V 108

Unicast Entries

vlan mac address type protocols port

---------+---------------+--------+---------------------+-------------------------

108 88a2.5eb7.7a76 dynamic ip,ipx,assigned,other GigabitEthernet5/11 (RECEIVED FRM OUTSIDE)

Currently VC status is up since PE02 received mac address. On PE01 statistics it increasing.

SW02

interface GigabitEthernet0/0/3 (Outside)

mtu 2018

no ip address

load-interval 30

negotiation auto

service instance 108 ethernet

encapsulation default

bridge-domain 108

interface TenGigabitEthernet0/0/24 (TO PE02)

mtu 9216

encapsulation dot1q 108,500-501,822,920-921,2002-2003

rewrite ingress tag pop 1 symmetric

bridge-domain from-encapsulation

################################################

interface TenGigabitEthernet0/2/0.108 (PE02)

encapsulation dot1Q 108

no ip redirects

no ip proxy-arp

xconnect x.x.x.x 11111encapsulation mpls

mtu 1600

################################################

interface Bundle-Ether1.108 l2transport (PE01)

encapsulation dot1q 108

rewrite ingress tag pop 1 symmetric

mtu 1618

service-policy input INTEROUTE-BU1.108-IN

################################################

SW01# Trunk pointing outside and pointing PE01/

Tried creating BDI and SVI on SW02 and 01 and it's working and mac can be learned from both switches.

Have you encounter this issue?

Thanks