Device onboarding + sync issue

I was told by cambium support to upgrade the firmware of ex2028-p and xv3-8 to the latest version. Before we do that to the production line, we have little lab environment with same devices so I ran the upgrade and the AP stopped working and went offline and didn’t come back online at all.

And we had issue with switch ( cannot connect to cnmaestro to onboard - support person couldn’t find root cause for this too and just told me there is a clash , he did multiple resets and factory resets but didn’t work) and the only way to get it working is push the configuration through the console then when I try to sync through cnmaestro , it fails and goes offline again until I reset and push the configuration again…

did anyone experienced this?