Hi, I heard multiple people noticing the same problem with the Bolein armor sets, some people seeing plague resistance 0 (on the cloth ones), or in my case just not having the attribute.
After crafting it I thought it was maybe a design decision but it seems like some people really have the visual bug part so I imagine it is not normal. Also forcing people to mix and match some other set parts with this one to have resistances would actually go against the idea of a set.
Here you can clearly see on the images that I have 0 plague resist. I then tried to use the enchants that seem to be available in the list shared with us: Full List of Enchantments - Google Drive
And there is no way to actually add them, I used 100 orbs making sure to not have an overlap on any stat. And to be honest, I’ve never seen those resistance affixes since the breach update. So it is maybe another independent problem.