Mod issue: some armors can't be worn, act as one-use items with no effect. (No defense value associated.)
Not sure what mod this is associated with (my best guess would be ACPv0.961), and some examples are saves linked in this post. I don't think the armors affected are properly being set to particular slots and they don't appear to have any defense value associated with them. So they are currently one-use items with no effect. Also, Rilis (standard Hero) starts with a Leather Cuirass with no defense value (not sure if this is part of the same problem, but it's possible so I raised it here).
Best regards,
Steven.