Cant upload Game

Try "A" and "D" if that moves the player do the following:

-Click on the player
-Go to behaviors
-Platform
-2nd to last one, "Default controls"
-Set it to "No"

Now, "simulate control" commands will work.

This should work, I won't be hear to answer. Talk later.

@sulli any new ideas?

I'm afraid not.
It is clearly a glitch in the scirra system (be it construct or the arcade.)

I was able to upload (as you saw) an r141 game without a problem.