Construct 2 Crashes for me when I am editing behaviour information then click out of the window, but in the same panel.
So for instance, I set platforming behaviour values, then if I click off of the values to deselect any text, but I am still clicking within the window, then I get a crash.
This is on the latest stable release.
I guess the best way to imagine it is when you select any text in a program and you simply want to deselect it, so you click in the general area around the text to deselct it.
IF I do this in the behaviours panel (lets say I highlighted a value I wanted to chahnge, but decided to unhighlight it) I get a crash.