[ovirt-users] oVirt 4.1.7: Duplicate MAC addresses had to be introduced into mac pool violating no duplicates setting.

Hi, We just upgraded from 4.1.6 to 4.1.7 and just after the engine was brought back the following event showed up: Duplicate MAC addresses had to be introduced into mac pool violating no duplicates setting. Can someone explain why is that? Thanks. Nicolás