Changes since SOA version
IXFR is a zone transfer request that returns changes since a specific SOA version. Enter the SOA version to request changes since then.
Not an apex domain
The domain mc-9364b848-931f-4e9f-ac25-190190-cdn-endpoint.azureedge.net is not the root of its zone.
Instead, try zone transfer on fb-t-msedge.net .
Instead, try zone transfer on fb-t-msedge.net .