I just did a diff between the old and the new kstarsrc and looked through the differences in settings. Many of them would almost certainly not cause any crashes, such as the window size being different. But one thing that stood out is that I had logging turned on in my kstarsrc that was causing a crash. Specifically I had turned on Verbose logging with CCD checked. I did some tests and that seems to cause a crash about 50% of the time, but without it being checked, it doesn't cause a crash, at least that I see with a couple of quick tests. Can you check to see if you have that setting enabled when using the settings file that caused the crash? Or maybe just try opening KStars, turning on CCD logging and see if that reliably crashes it for you? If so, we may have found a major clue as to what causes my mysterious crash that was seemingly affecting just me.