I'm playing with the beginners tutorial of COnstructor 2 and faced with this strange behaviour.
Firefox 3.6 say me "Assertion failure: Drawing incomplete image" when I start a preview.
Currently the project has "640, 480" as Window Size, the Layout and the Background layer have "1024, 768" as size to have a bit of scrolling.
I noticed that if I set all these sizes to the same values (i.e. "640, 480") this message does not appear.
Thanks in advance for any help.