Well, now the file just seems to be corrupted. When I try to open it, I receive "an attempt was made to access an unnamed file past its end". <img src="{SMILIES_PATH}/icon_eek.gif" alt=":shock:" title="Shocked" />
But if I create a new, empty Construct project, insert a Sprite object, close the Picture Editor after it first pops up automatically, and then reopen the Picture Editor 5 times, the program crashes, and I sometimes receive the "pure virtual function call" message. This happens when opening the Picture Editor from the Edit links or from the Animation Bar.
I am using version 0.86.2.