DNS Pending and password reset for live domain

I am trying to migrate q-solutions.hu email to live domains.

I want to have a one-week migration period to give our users time for setting up their devices before actually switching providers, in order to have uninterrupted email service.

So I need to leave the old MX records for the coming week so that mails get delivered to the old mailboxes until "go live". For the time being, I have added the TXT record of Live to prove ownership - still I get DNS pending error message, even though a DNS query for the TXT entry shows that it has propagated (https://www.whatsmydns.net/#TXT/q-solutions.hu).

Shall I just start adding the users and not care about this warning until I change the MX records next weekend, or is there a way for fixing this, as I have already proven ownership by adding the TXT record? This worries me a little because I would like to have a smooth transition.

Also can you please enable the password reset option for member email accounts? We are working with people who are on the way so we need to manage the accounts centrally.

Thank you!

Viktor