I ran into a glitch.

I renamed a virtual library. It caused the corresponding view to not work.
I went into Customize View Manager to fix it. Even though "Switch to Virtual Library" was checked, the dropdown menu was blank and I couldn't click it. I ended up changing my VL name back to make it selectable again.
I was able to successfully change it by setting it to (no virtual library)
before renaming the VL.