What Happened to The Latex Symbols In the Libreoffice-Texmaths Equation Editor?

You have to remove packaged TexMaths 0.43-2 and install newest instead with the steps below:

Remove the libreoffice-texmaths package

 sudo apt-get purge libreoffice-texmaths

Remove configuration folder

 rm -rf ~/.config/libreoffice/4/user/TexMaths

Download latest version from TexMaths site, save TexMaths-0.46.1.oxt file.
Open downloaded TexMaths-0.46.1.oxt file in LibreOffice and confirm its installation.
Restart LibreOffice Writer, click to add new equation:

Note: packaged version do not have buttons in all Ubuntu releases, so I reported bug 1828433.

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