Good day, It’s a two step process : First, you select a brush that you’ve decided “TO BE auto-flattened”. Works pretty well. Second : Then youI select a brush that is specified “NOT TO BE auto flattened”, this brush keeps being in the auto-flattened mode. I have to manually uncheck every time the box for it TO BE NOT auto-flattened again. Bummer. Could you please check if you’re experiencing the same behavior ? Thanks
Mac-Yosemite 10.10.5