Attack % on Weapon Tab not persistent

Attempting to run a BRP campaign, and the player sheets have a Weapon Section on the main tab.
The ATK% can be manually entered, but resets to blank when I close the game.
I have attempted to add a Melee skill "Sword" that would match the Skill of the item, but they do not seem to link.

Any assistance is greatly appreciated.

What is the skill on the weapon and what is the total? The field updates based on that.

I think I just figured that out. I kept adding Melee with subclass "Sword". I instead created a skill called Sword, added that to the character sheet and it is now persistent.