After running some updates, it seems I can no longer add node/devices with my Z-Wave setup.
This is running inside an Oracle VM VirtualBox.
I updated the core HA, as well as the OS. (I also updated VirtualBox) I think the VirtualBox update broke the usb connection. I can’t figure out how to get that working as a USB passthrough, but it seems to be working as a serial port passthrough.
I am using an Aeotec Z-Stick Gen5+
Look at the bottom of the page for the Add Device button.
I spent many hours trying to figure out why the “Add Device” option disappeared. I tried reconfiguring the USB passthrough vs serial device passthrough. I’m not sure how many times I read over the documentation to see if I missed something obvious (like the button moving to another part of the page.) 
Is there a reason we took only ONE of the actions, and hid it into the corner? If all the options had moved, it would have been much more obvious.
I figured I would try and create a PR to help with updating the documentation page; however, I have realized that this documentation is soo far out of date, that I don’t understand what needs to be updated to bring it anywhere close to where the page is now. I might revisit this idea after having used it for a bit, and understand more of the changes that have been made.
This has been an extremely painful update for me. I understand the need to keep things up to date, and keep things moving forward, but completely renaming and moving things at the same time make it very difficult for people to find things. And do we really need to bury the option to restart HA under so many clicks/page navigations? This is the most common action for me to do in HA… This should become easier to get to, not adding 2 more page navigations.