Consul 1.8 - Error during WAN federation

Hi, I connected two Datacenters with WAN Gateways. Services are connecting correctly across the Datacenters. I followed this procedure: https://www.consul.io/docs/connect/wan-federation-via-mesh-gateways

However I am seeing the following messages in the log.
Any idea what is causing these errors ?

2020-06-29T15:29:21.131Z [ERROR] agent.server.memberlist.wan: memberlist: Failed to send ping: node name does not encode a datacenter: consul-c2s-as-1d.platform.comcast.net.openstacklocal.as
2020-06-29T15:29:21.635Z [ERROR] agent.server.memberlist.wan: memberlist: Push/Pull with consul-c2s-as-1d.platform.comcast.net.openstacklocal.as failed: node name does not encode a datacenter: consul-c2s-as-1d.platform.comcast.net.openstacklocal.as

Here is the output of ‘consul members’ from both datacenters:

======================= HA =========================================
[root@consul-c1s-ho-1d consul_poc]# consul members -wan
Node Address Status Type Build Protocol DC Segment
consul-c1s-ho-1d.platform.company.net.openstacklocal.ho 6.18.17.143:8302 alive server 1.8.0 2 ho
consul-c2s-as-1d.platform.company.net.openstacklocal.as 6.17.1.85:8302 alive server 1.8.0 2 as

[root@consul-c1s-ho-1d consul_poc]# consul members
Node Address Status Type Build Protocol DC Segment
consul-c1s-ho-1d.platform.company.net.openstacklocal 6.18.17.143:8301 alive server 1.8.0 2 ho
consul-c1s-ho-2d.platform.company.net.openstacklocal 6.18.16.170:8301 alive server 1.8.0 2 ho
consul-c1c-ho-3d.platform.company.net.openstacklocal 6.18.17.77:8301 alive client 1.8.0 2 ho
consul-c1c-ho-4d.platform.company.net.openstacklocal 6.18.18.30:8301 alive client 1.8.0 2 ho

======================= AS =========================================

[root@consul-c2s-as-2d consul_poc]# consul members -wan
Node Address Status Type Build Protocol DC Segment
consul-c1s-ho-2d.platform.company.net.openstacklocal.ho 6.18.16.170:8302 alive server 1.8.0 2 ho
consul-c2s-as-2d.platform.company.net.openstacklocal.as 6.17.1.175:8302 alive server 1.8.0 2 as

[root@consul-c2s-as-2d consul_poc]# consul members
Node Address Status Type Build Protocol DC Segment
consul-c2s-as-1d.platform.company.net.openstacklocal 6.17.1.85:8301 alive server 1.8.0 2 as
consul-c2s-as-2d.platform.company.net.openstacklocal 6.17.1.175:8301 alive server 1.8.0 2 as
consul-c2c-as-3d.platform.company.net.openstacklocal 6.17.2.11:8301 alive client 1.8.0 2 as
consul-c2c-as-4d.platform.company.net.openstacklocal 6.17.2.139:8301 alive client 1.8.0 2 as