My apologies, as I could have saved you the trouble and wasted time, but I thought it would be too off-topic. I also tried the formatting app; I tried to import the markdown file several times. Never worked; Bartleby couldn’t see it (greyed out.) Just regular markdown, then the option MultiMarkdown---->Latex, then MultiMarkdown---->OpenOffice. I gave up. I tried both the direct download and the Mac App store version. Neither worked. The Mac App store version hasn’t been updated in 11 months.
I mentioned all this way back in that forum post where he introduced it, cos it didn’t work then, either. He suggested to email him or report it in his forum. I never bothered, his unprofessional trashing of Scrivener’s Compile feature was a turn off, and I felt he didn’t deserve the courtesy.