Its not possible in Blender to have more than two dyn.paint brushes in the same time?

I need more than two brushes for dynamic paint. I have them on one canvas. But after baking i see blue color paint only for 2 brushes. Why third one is not working. I tried redo it again and again, baked them few times, but its not working

A canvas can have more than 2 brushes (see attached file)

Can you supply demo file


dynamicpaint_example.blend (1.19 MB)