I have Libre Office 5.03 on Debian 8_x64. I have english interface, but write in Polish. The spell check does not work. It does not mark obvious errors during writing and when I hit spellcheck icon, it immediately gives "The spellcheck is complete" message ignoring all errors as well.
After googling a bit I did try without success: - to close Libre office, remove ~/.config/libreoffice directory and restarting the program - to install language tool
Id did try changing language settings in different configurations, but without any success. language options 1, language options 2
I have run out of ideas how to approach the problem.