I'm having trouble switching to the wet blending and sponge tools. I hope this makes sense:
1. If I am on any tool other than the Watercolor brush, I can only switch to the Dry Brush -- not the Wet or Sponge Brushes.
2. When using the Watercolor brush, I can only switch to the Wet blending brush, not the other two.
3. I can only select the Sponge blender from one of the other blending brushes.
Once I switch to any of the Blending brushes, I can switch between any of the other blending brushes.
It's easy to work around, but I doubt that is how you intended for it to work!