The action "call method" does not send the parameter "Color" correctly.
RBG values are correct, Alpha not (it will always be 255).
Unity 5.3.2f1, Playmaker 1.8.0f41
PS: using "send message" with parameter "Color" works just fine, but if you use a variable as color, it won't work correcty, also the naming next to the color variable is "texture"?!