Doesn't happen every day, but at least once a week, I'll have a Toad Workbook open and it will just close and I'll lose changes
I did a brief dive into the Knowledge Base on Quest's Support site, but I didn't see any articles about sudden closes in TDP Workbook. Possibly because 6.2 is so new.
Eric, can you please open a Support ticket--if you haven't already--so that Quest can get this documented, and maybe Support has seen this before, has documented a resolution, but just didn't get it published yet.