Hi, This is fixed in all recoll versions after 1.37.1 (january 2024).
I would suggest updating to the latest: 1.39.1. To make things hopefully easier, there is a prototype Debian package in the packages/debian/debian source directory (the build switched to meson/ninja). Another possibility would be to patch the file with the attached diff, which updates it to the current version, but features in latest versions may make it worth updating instead. J.F. Dockes
recoll-1.36.1-mh_xslt.diff
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