There is no problem, I started again, from the beginning. In my case, BB didn't crushed, but simply when I wanted to open the project, that error occurred. Anyway, I see something strange that I haven't noticed before ... If I copy something from an UI into a World, in the editor I can see that picture, but when I Preview, that picture doesn't appear anymore. Ok, I dragged the image from my computer and I put it as Object, well, in this case I can see the image in Preview, but I don't have the Stick To Edge function that's vital for me because I'm working in landscape mode, and if I don't check that box, the graphics appear partially out of frame when the view mode is no longer 16: 9. Do I miss something? On the lost project, I don't remember stumbling at such a problem...
