See https://www.libreoffice.org/bugzilla/show_bug.cgi?id=78042
Basically, some text will appear as garbage in EasyJet boarding passes, and
possibly other documents.

This is fixed upstream, I am targeting attention to it because the fix is
pretty simple:
https://www.libreoffice.org/bugzilla/attachment.cgi?id=107478
.... and so maybe a fixed version can be accepted for the January 5 deadline.