Issue 1) The unsaved work dialog on quitting shows up twice (v0.7.5). The easiest way to replicate the bug is to start the editor then exit the editor. I get the menu saying that all unsaved work will be lost and hit Yes. The dialog then reappears and I have to hit yes again to get the editor to quit.
2) If Is start the editor then exit the editor I get the unsaved work dialog. If I hit the "No" button on the first "unsaved work" dialog, skyline.exe crashes. If I hit "yes" on the first dialog, but "no" on the second, the editor doesn't crash, and the "no" button works as expected.