Consecutive points are not allowed in machineNamePrefix, but from the prompt "spec.machineNamePrefix: Invalid value: "string": a lowercase RFC 1123 subdomain must consist of lower case alphanumeric characters, '-' or '.', and must start and end with an alphanumeric character.", consecutive points should be allowed. 
And I can create machine on providers console with consecutive points https://drive.google.com/file/d/1p5QLhkL4VI3tt3viO98zYG8uqb1ePTnB/view?usp=sharing

    4.19.0-0.nightly-2025-01-08-165032

    Always

    1.Update machineNamePrefix containing consecutive points in controlplanemachineset, like

  machineNamePrefix: huliu..azure

    2.Cannot save, get prompt
# * spec.machineNamePrefix: Invalid value: "string": a lowercase RFC 1123 subdomain must consist of lower case alphanumeric characters, '-' or '.', and must start and end with an alphanumeric character.

    3. If change to 

  machineNamePrefix: huliu.azure   

then it can save successfully, and rollout succeed.
  

    Cannot save, get prompt

    Can save successfully

    New feature testing for https://issues.redhat.com/browse/OAPE-22