OpenShift Console crashes when customizing a Virtual Machine using the template and the default NIC is removed and a new NIC is attempted to be added.  

    4.18.3

    Everytime, reproduced on multiple machines as well as different OpenShift clusters. 

    1. Assumes a working OpenShift Virtualization installation, storage already configured, a valid NNCP that creates an OVS Bridge using a secondary nic (may work with other configurations, but this is what I used) and a valid working Network Attachment Definition that references the NNCP. 
    2.Open the Virtualization Menu Item > VirtualMachines
    3.Press the button Create, then "from template"
    4.Select the Fedora Template
    5. When the template window opens select "customize virtualmachine"
    6. Click the top tab "Network Interfaces"
    7. Click the three dots at the end of the default NIC line and select delete.
    8. Click Add Network Interface and poof, the UI Crashes. 
    
    

    The OCP UI Crashes

The UI stays up and the Additional Network Interface is either added, or a menu to select a NIC pops up.