Created attachment 108072 [details] In attach a sample file, from a much bigger real file I'm using. I experience several crashes while sorting sheets on dates. After a crash, reopening the file and sorting it again usually works fine. Some more editing to the sheet, and a new sort leads to a new crash. Unfortunately, I have no 100% sure way to reproduce the issue, but overall it is a constant, very annoying behavior.
*** This bug has been marked as a duplicate of bug 80874 ***