no libncursesw library installed with lib32ncurses...
There is a lib32ncurses5 package to supply x86 compatibility libraries to amd64 distros, but there is no lib32ncursesw5 package. This means 32-bit ncurses apps running on an amd64 box can't use Unicode (and those that would try to simply would refuse to start at all, due to a missing dependency).
This is normally provided by the libncursesw5 package in a x86 Ubuntu install.
The missing files/symlinks, specifically, would be: