Error importing 23.3 update to server

Hello,

don't know if I'm the only one seeing this. Have updated/upgraded 2 zones, In both I did received the error in system update in my lab zone "Unable to retreive the failure root cause

Note: ZENworks will automatically retry the system update preparation stage on the failed servers. If the error persists, please contact Micro Focus Customer Support."

In first zone it was a primary server agent that wasn't correctly registered with the zone, support helped to resolve that. Now I try the same thing at a customer and get the same error on one server, this time I know it's not the same issue as on my lab zone.

So my questions, I'm the only one seeing this or is it a known unknown error?

Any ideas how to resolve issues like this before updating? It's a pain having to contact support so often because strange errors.

Any suggestions are welcome.

/Lelle