If the interface required by the BGP session belongs to a VRF, the session cannot be established.
I couldn't find a place to specify the VRF to be used in the BGP configuration.
For example:
ethernet eth8 { address 10.10.10.8/24 vrf FCIX }
protocols bgp 65500 { neighbor 10.10.10.10 { peer-group TEST remote-as 65510 } peer-group TEST { address-family { ipv4-unicast { soft-reconfiguration { inbound } } ipv6-unicast { soft-reconfiguration { inbound } } update-source eth8 } }