Upgrade from NSX-T 3.22 to 4.1.0 failure . Upgrade manager failure during host upgrade VCLM enabled

[AndrewRUK]

Morning all.

I am doing an upgrade of our test nsx environment prior to production and I have run into the following issue when trying to upgrade the hosts. The clusters are vclm enabled and initially there were issues with vclm requiring additional packages installed which has now been resolved.  I have tried to rety the install and it fails with the following error : 

How do I set the upgrade manager status to Paused? I currently cannot proceed further with the upgrade as the host upgrade tool bar is blanked out and I cannot stage the upgrade to vclm or add additonal host groups. 

[CallistoJag]

It might be the hosts themselves blocking this, as they might hold the status as active. Log in to vCenter Server and place the impacted hosts into maintenance mode (can be done one at a time, or you can check first to see which one is responsible and deal only with it).
For an ESXi 7.0 host, enter the nsxcli by running:
# nsxcli
Then use the following command to clear the upgrade status flag on the host:
> set host-switch upgrade-status false
Reboot the hosts and resume the upgrade process.

[AndrewRUK]

Hi @CallistoJag .

I've tried this and it's made no difference.

What is the next thing I can try?