So I've been working in the Digital Painting Basics Learning Flow and I'm immediately noticing an issue blending. When using the eye dropper to grab a "lighter" Color and blend into a "darker" Color the lighter Color will not show up over the darker one unless I create a new layer on top of the layer containing the "darker" Color. (This isn't the base Color, mind you. Think building values, getting a little heavy handed and grabbing from a lighter portion of the image to blend over the darker stuff). Do I have some setting selected that I should turn off?
What are your brush settings e.g. opacity, flow, etc, and is the layer you're drawing on set to multiply or something else?