swu3 after a system refresh

Good morning,

I am facing a new problem, for the second time, after refreshing an ECC 6.07 system.

It is related to SAP work flows.

After the refresh, I start transaction swu3.

I check that the all the subcomponents of the "Maintain Runtime Environment" are "green".

But a few days later, the wf-batch user becomes locked and the "configure RFC Destination" of swu3 is not ok anymore.

1. Would you know how I can diagnose why the problem that is occurring?

2. How should I proceed after the refresh to avoid that?

Have a nice day.