Mantra Talent Not Functioning

[Gakkuu]

I was testing a character with 3688 mana and with the Mantra talent activated, which is supposed to give 3% of one's mana as extra physical damage. While equipped with a staff, and without Mantra activated, it lists my physical damage in the elemental tab as 65 to 132. Then, I tried activating the talent and ended up with 66-134 damage. You can see the problem here is that 3% of 3688 should result in much more than +1/+2 damage.

I'm just shooting in the dark here, but is it possible 0.03% was accidentally inputted as the Mantra talent bonus rather than 3%? Because 0.03% of 3688 = 1.1.

• Launcher: Curse Forge.
• Version 4.5.2
• OS: Windows 7.