TexMaths with LO 6.2

I am trying to write an equation using LibreOffice 6.2 Impress, Taxmaths 0.47, Texlive 2019 (installed via the TL installer), all under Linux-mint-xcfe 19.1. When I run the compiler, I am told: No equation was compiled.
Texlive works with with TexWorks and Lyx.
What is going on?

I’ve no problem running TexMaths 0.47. Did you set the right path for the (Xe)LaTeX binary on TexMaths settings (third button on TexMaths toolbar)?