i've got 4 paint nodes set in the EDITABLE NODES section of an HDA, but if i enter the HDA and try to view the GREEN node for example by clicking on it's view button, houdini does nothing and continues to view the RED node. same for the BLUE and ALPHA nodes. somehow houdini is locked and only lets you see the RED node when you're in the HDA.

anyone know what i'm missing?