Thought you might be interested in knowing that the Clear to Color action was behaving unexpectedly for me when plugging this into my project and testing on iOS via CocoonJS. I thought maybe I was just using it wrong, so I created a fresh capx and it worked just fine. Obviously, it has something to do with my project, but just for your info when I use Clear to Color, instead of filling with color a snapshot of the entire canvas (i.e. the game window) is taken and pasted upside down in the Paster object. This is the exact same functionality I was getting when testing out C2's built-in "System > take snapshot of canvas" action a few weeks ago.
The workaround I chose was to create a pure white tiled background, fill the screen, then use the Paste Object action on the Paster object, then destroy the tiled background. This works great with no performance issues, however I thought maybe you would be interested in the report.