- Choose "Categories", add a category, select it and klick the "down arrow"-button: the category is added to the list of "Defined categories"
- Choose "Keywords" and do the same here
- Close IPTC-dialog and open it for another image
- Look at categories: the previously saved category is still in the "Definded categories List": OK!
- Look at Keywords: the previously saved category is gone

A very confusing and annoying bug, now that we finally have defined keywords, one can't use them! "Lika plastic bone for da dog!"
XnView 1.90 <x>