I have 3 identical nodes but while trying to upgrade RKE1 we get this error on one of them:

[ERROR] Failed to set up SSH tunneling for host [XXX.XXX.XXX.26]: Can't retrieve Docker Info: error during connect: Get "<http://%2Fvar%2Frun%2Fdocker.sock/v1.24/info>": can not build dialer to [c-5p6t7:m-db2a839a1bab]

the other nodes are fine