BGP IPv6 Mikrotik versus ExaBGP

I`m trying to setup BGP using a Mikrotik Router and ExaBGP daemon but the peer is not established.

/routing bgp instance
set default as=12345 client-to-client-reflection=no router-id=192.168.110.252
[admin@crs2] /routing bgp instance> 

/routing bgp peer
add address-families=ipv6 name=nsx-1 remote-address=<snip>::62 remote-as=12345 remove-private-as=yes ttl=default
[admin@crs2] /routing bgp peer>

The error on the Mikrotik is

23:50:28 route,bgp,error Invalid optional parameters length 
23:50:28 route,bgp,error BGP: Invalid optional parameters length

The config on the ExaBGP

group anycast-test {
  router-id xx:110::62;
  local-as 12345;
    family {
    ipv6 unicast;
    }

  process watch-application {
    run /bin/bash /etc/exabgp/check-dns.sh;
  }

  neighbor xxx:110::250 {
    local-address xxx:110::62;
    peer-as 12345;

    static {
      route  xxx::53/128 next-hop self watchdog dns;
    }
  }

}

The RouterID can never be an IPv6 adress :frowning: