Wanting to set up a dissertation with LyX, I tried to configure it for my university's format that requires both a Bibliography and a List of References as separate parts, using LyX 2.2.0 under Windows 10.
LyX 2.x supposedly allows this, and is documented in 3.1.3 Multiple Bibliographies of the Additional LYX Features. I followed the advice to the letter, yet I get an annoying BibTeX error
Illegal, another \bibdata command. The PDF looks OK, however.