Ele Hit of the Spectrum displaying incorrect DPS

The Character Screen Offence tooltip is displaying an incorrect Damage Per Second number for Elemental Hit of the Spectrum.

My auto attack DPS calculates correctly - i.e. average mainhand combined damage * attacks per second * (1 + (crit chance * crit mult-100))

The displayed number for Spectrum Ele Hit is 1/3rd of the value given by that calculation; I presume it's displaying an average per-element value (as regular Ele Hit would) despite hitting with all 3 elements?