Cannot build existing host with oVirt

Hi guys,

I'm getting the following error on an existing host when I want to rebuild
it:

Failed to enable host.domain.local for installation: ["Failed to update a
compute ovirtcluster (oVirt) instance host.domain.local: Network interface
is already in use."]

Latest versions, FM 1.5 and oVirt 3.4

Any idea ?

Thanks!

Matt