Since upgrading from TC15 to TC16 when I try to run "ncdu" from ncdu.tcz it fails with this error (and messes up the terminal):
ncdu: symbol lookup error: ncdu: undefined symbol: _nc_acs_map
The MD5sum of ncdu.tcz on my system matches the current version and other programs that depend on ncursesw.tcz run fine, so I think ncdu needs to be recompiled for TC16.