Unlabored Blade's Firebug

[Raygereio]

A while ago I made a little mod that changes the Firebug proc chance back to 10% using AssetBundleExtractor. I thought it worked fine: It shows the proc chance to be 10% when you first unlock it.

However, it turns out that when you save & reload the game, the proc chance will revert back to 3%.

 

I have no clue why. I can't find any file that could be messing with the weapon's stats. Does anyone here have an idea on how to solve this?