Arcane staff - Damage bug

[Juicymango]

Hey everyone, this was a correction to a visual bug with some of the Glintstone and Arcane Weapons! Some of the damage values were not correctly displaying. The actual damage values of the weapons have not been changed in this patch. We made sure to take care of this so you have better comparisons of these weapons to new weapons coming in the expansion!

As voom said in another thread, the arcane weapon has just been adapted in damage appearance, if I do understand this right.
But can anyone explain me how it is possible, that the mythic gun shows more damage than the arcane weapon?
In the following screenshot you can see that mythic gun has lower stats but shows more damage? Could this be abug of the gun?
I know arcane weapon is clean but +43 damage because of some glacial gems aint possible.


As you can see here, the arcane staff has more INT and More DPS.

Love to here some feedback of you guys and hopefully any def can answer as well