[ovirt-users] engine setup fails: error creating bridge interface virbr0: File exists - ?

Hi guys. I'm trying to setup the engine on the latest stable ovirt node(in a VM), so a clean, vanilla-default system. -> $  hosted-engine --deploy --4 ... [ INFO  ] TASK [ovirt.ovirt.hosted_engine_setup : Activate default libvirt network] [ ERROR ] fatal: [localhost]: FAILED! => {"changed": false, "cmd": ["virsh", "net-start", "default"], "delta": "0:00:00.042134", "end": "2023-05-11 11:08:59.248405", "msg": "non-zero return code", "rc": 1, "start": "2023-05-11 11:08:59.206271", "stderr": "error: Failed to start network default\nerror: error creating bridge interface virbr0: File exists", "stderr_lines": ["error: Failed to start network default", "error: error creating bridge interface virbr0: File exists"], "stdout": "", "stdout_lines": []} [ ERROR ] Failed to execute stage 'Closing up': Failed getting local_vm_dir ... Any & all suggestions on how to fix/troubleshoot this are much appreciated. many thanks, L.