Try seeing if it persists through savegames.

Sincerely
~ Kongdej

If it persists through a savegame, you should upload it man .

Also post a debug, if nothing else it might give some system information to the devs.
(Oh wait, on second thought, now I'm being stupid ) but savegame at least.

Here is a post about posting bugs:
https://forums.elementalgame.com/415301
This post contains the general know how, and a link to stuff like www.dropbox.com which can be used to share things like the save-file.

Sincerely
~ Kongdej

here is a debug w na in effect https://www.dropbox.com/s/0tpkck3qnyowbvu/debug1.err?m

save w na in effect https://www.dropbox.com/s/oj9e1h3a68qd2ot/debug%201.EleSav?m

debug two turns later no na https://www.dropbox.com/s/oj9e1h3a68qd2ot/debug%201.EleSav?m

save - two turns later no na https://www.dropbox.com/s/qjmxip5wl3jod9h/debug2.EleSav?m

PS if you take a look at the second  and shop - you'll also see that leather curiass are not avail - this is due to the no lether armour bug

pss - before anyhone comments I am tricking Gilden into a false sense of superiority before I crush them. So Far so good.

They will learn to fear the Ducky