I'm having a strange issue and hoping someone can help — or maybe a dev can take a look.
The skill Broadside clearly states that it requires a Throwing Knife or Naginata to function (see screenshot below):

I equipped Na-Krul’s Spine, which is explicitly labeled as a Naginata (2) — so the requirement should be fulfilled. However, Broadside remains unusable and says the weapon condition is not met.

Am I missing something here? Is there a hidden tag that Broadside checks for, which this Naginata doesn't have?
If it's a bug, I hope it can be fixed. Would appreciate any insight!
Thanks in advance