Implausible joined server for entry (RKE2)

HI ALL!
Can someone help with - implausible joined server for entry error.
There is a link on internet - [BUG] [CAPR] Upgrading Rancher during etcd restoration from < v2.7.5 to v2.7.5+ can lead to `implausible joined server for entry` · Issue #42856 · rancher/rancher · GitHub but instruction in this link is not working or i doing it wrong.

prehistory:
2.7.0, docker, 1 gui node, 1 cp-etcd, 4 worker nodes
update from 2.7.0 to 2.8.0 and …problem