"Mężczyzna nie jest głodny, jest spragniony" should be accepted too.
Fixed. Please use the "report a problem" feature in the future!
It's not fixed
It is, I checked. However, from time to time Duo rejects correct answers, so maybe this is what happened to you.
I think I never encountered such a bug while using the (Android) app, it seems to be only an issue of the web version.