Failed to add new machine with error 'multiple networks found, specify one in config' in RHOCP 4 hosted on vSphere.

Issue

Node addition failed with the below errors seen in machine-controller pod logs.

I1007 13:28:45.1053131 recorder.go:104] controller-runtime/manager/events "msg"="Warning""message"="worker-9bz6g: reconciler failed to Create machine: error getting network specs: multiple networks found, specify one in config" "object"=kind":"Machine","namespace":"openshift-machine-api","name":"worker-9bz6g","uid":"06b1da48-c916-46d4-8bf0