I created a new project, imported ugui with its example files called "test"
is the scene with Slider Toggle Button scrollbar inputfield
still same problem, the clicks are not recognized, the button changes color, but the event is not sent by playmaker, also there is an error "Missing 'PlayMaker UGui' prefab in scene" but the prefab is inside the scene. I also removed it, and added again.
I am using playmaker 1.7.8.3 with unity 5.2.1.4f1
do you have any other ideas I could try out?