Concentration Bug

Support Bug Report
1

I just attempted to make 10 casts of the Algari Mana Potion. The in-game UI says 99 concentration per cast, and I bought enough ingredients to make 10 since I had 1000 concentration.

99*10 = 990, meaning I should have 10 leftover.

Instead, I made 8 casts and had 11 leftover.

Is there a bug here? I got one multicraft and saved 9 Leyline Residue. Do multicraft and resourcefulness procs chew up concentration?

2

Were you using any Finishing Reagents? That can sometimes mess things up.

3

I was not but good thinking!

4

Were your materials all the same rank?