This happened after the recent upgrade of the Debian packages to texlive 2018.20190227-2. Any suggestions?
Here it seems to work by the following change:
\begin{document}
\gappto\captionspolish{\renewcommand{\figurename}{Il.}}
--->
\gappto\captionspolish{\renewcommand{\figurename}{Il.}}
\begin{document}
that is, writing
\gappto\captionspolish{\renewcommand{\figurename}{Il.}}
in the preamble.
Best,
Akira
