[ubuntu] Missing VM console

I have a Windows VM that I regularly run with virtmanager.

This morning as I was using it I inadvertantly pressed ctrl-Q which seems to have just killed virtman while the VM was running.

Since then, even after a full reboot of Ubuntu I have lost the capacity to see the VM console. That is :

1- I start virtman
2- I power the windows VM from virtman
3- I see that the VM is indeed running (cpu use non zero and is fluctuating)
4- But I cannot see the VM console even if I tell virtman to show it

What can I do to fix this

Regards