Moving from QBDT to QBOL. I keep setting up / authorising MTD - successfully. But then get a Cannot connect to MTD (try in another 72 hours) error. WHY ?

This is happening after I successfully resubmitted return for Q/E August 2022.  (QBOL is making me resubmit all VAT returns for the start of my financial year)
I am now trying to resubmit the November 2022 return
(Not sure if I should leave all figures zero, or copy figures from the actual return I submitted last year from QBDT).