Importing lyx files into a lyx file with a command line

Dear All, I am trying to import the file y.lyx (attached) into the file x.lyx (also attached) with the following command: lyx x.lyx -batch -i lyx y.lyx Unfortunately, y.lyx is not imported into x.lyx. Any ideas? Thanks in advance, Paul x.lyx Description: application/lyx y.lyx Description:

Math Instant Preview Failing due to Fontspec

Dear List, I am attempting to track down lack of instant preview for math equations. It seemed to be a random event between different files not working. I chalked it up to random incompatibilities between all the various classes and preambles, etc. However, even a new document doesn’t seem to