The TMDB info addon for tv series ignores language settings

I’m using LibreELEC on my RPI4 box. Everything was working fine, but after upgrade to LE12, the TMDB info addon for tv series ignores language settings. I have set it to pl_PL but when adding a new tv series, all the info for it is in English. The same when I refresh the info of any of the existing tv series — it is replaced with the English version. The TMDB info addon for movies works well. Is there a way to fix it?