The problem I am having is that no matter what I do, the layout editor shows all the existing game objects as white squares. The game will still run correctly and the background/sprites etc all render as they should in the browser, but the editor just shows everything as white.
I followed the tutorial here: http://www.scirra.com/tutorials/37/beginners-guide-to-construct-2 and was able to get the same game to work (mostly), but I had to pretty much work blind as white objects on a white background are only accessible through the 'Objects' window, or by remembering where I put them.
I also tried loading a bunch of the different sample projects, and like the game I created by following the tutorial, all the objects render correctly in the browser (Chrome 18.0.1025.142 for what it's worth) but do not appear in the editor.
I was originally working with R85, but I later switched to R84, just to see if it would help. Both builds have the same problem.