Dns challenge with rfc2136 doesn't change serial

I would like to understand the logic between the rfc2136 challenge.
Besides the fact I have a SERVFAIL with a permission error for which I’m going to do another post, Why the dns challenge doesn’t seem to change the serial of the db which is needed at least for the propagation ? And if they do not want to propagate, then why to add an argument of x seconds for propagation in the command line?

This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.