So I found a bug where you can't get TieredZ attributes on swords and armor when you select the blacksmith origin in Origin Classes.
I thought it could help when I open up an issue here as well.

More details are on their github: apace100/origins-classes#66

Yes, I tested it again now with the latest versions of your and their mod.

Is this still the case on the latest version?

Out of time reasons I only work on the latest versions of my mods, if you use the latest version and this bug still occurs, please reopen this issue.