Chainbreaker is not functioning properly

I have 1525+ mana regeneration (= 61 rage regen), and

40% slower degeneration of "Inherent rage loss"


This means total 55 rage regen per sec (61 - 6).

My maximum rage is 40.

So if I use "Chainbreaker", I need to reach maximum rage in just 0.72 seconds.

HOWEVER, after recording my gameplay and measuring the time it takes for my rage to go from 0 to 40, I found that it takes significantly longer—around 1.1 seconds.

This is a serious issue that severely impacts my build. It appears to be a critical bug where rage is not functioning correctly, similar to the recently fixed Savage Intensity bug.

Please address this issue promptly so that my build, which relies on mana regeneration and rage, functions correctly.