I have noticed the same thing on two sites. After some additional testing I found that if the original widget titles are in the default language they don’t show translated but if the strings are translated TO the default language it works.
Plugin Author
Chouby
(@chouby)
I made some changes to strings translations, trying to solve some conflicts with a theme and it seems that I broke something else.
Could you test with the development version 0.9.3.1+ ?
http://downloads.wp.xz.cn/plugin/polylang.zip
Yep, that development version fixes this issues. Thanks a lot 🙂