Archmage Buff Icon is missing

I have turned on Archmage, Grim, Tempest and Cast on (I have 250 spirit) and yet I am only seeing buff icons for Grim, Tempest and Cast On.

Is there supposed to be an Arch Mage buff icon on screen ? or is it missing ?

It should be triggered by spamming sparks ?

Help appreciated.

Did you ever get an answer to this? I'm seeing the same thing. 100 Spirit, 0 remaining, no indication that Archmage is "on" though.

You know it's on by the damage increase.