OK,
I ve run the backup three times .
I still have two machines, where it still fails on TASK [Wait for export]
I think the Problem is not the timeout, in oVirt engine the export has already finished :
"
Exporting VM VMName as an OVA to /home/backup/in_progress/VMName.ova on Host kvm360"
But [Wait for export] still counts to 1 exit with error and move on to the next task
bye shb