Thinch

I was trying to make a custom race according to this tutorial: http://wiki.tesnexus.com/index.php/Creating_a_custom_race_for_Skyrim In the part where I need to create the Armor Addons, I select my race in the Additional Races list and click OK but when I open the Armor Addon window again it isn't selected. I tried selecting the other races and they stay highlighted. What can cause my race to unselect?