It's working again. I re-installed LyX, but that didn't fix the problem. I
didn't want to re-install MikTeX for obvious reasons (it is working fine in
TeXStudio and it's slow to install).
Googling, I saw someone recommended using biber instead of bibtex in
Preferernces > Output > LaTeX >
Hello,
I'm using Windows 10, LyX 2.2.2 on an article I've been working on for
months, and all my citations started to appear as question marks (?) and no
References section is produced. It was working before, so something got
hosed on my machine.
I tried the LyX file on another Windows machine
