Frenzy Charge Buff - Whirlwind Lance

I have +90% chance to gain and additional frenzy charge chance on Combat Frenzy and all of the frenzy charge nodes that give extra charges, but I cap out at 3 basically all the time. I tried to relog and unequip and requip Combat Frenzy but it didn't work.

It might be extremely bad luck but I find it hard to believe that I would cap out at 3 every time for about an hour of playtime with a 90% chance to gain an additional frenzy charge.

Your maximum frenzy charges by default is 3