Lost Whole Last Month of Data
my sympathies! What I do personally is keep my task coach file in a synced directory (like DropBox) so that it is regularly backed up that way as well as the built-in backup. I noticed once that backups were not shown because the window to select them was too small and extending it let me see more backups. I don't expect that is your situation though. If you have no other backup that you do otherwise, then I'm not sure if the data can be retrieved. Hard to know what happened. Besides having auto-save...
That is a big deal, the 1.4.6 update was very small, this should make it much easier to fix!
After Windows update, crashes on save or open actions
somewhere here I've already mentioned that the revival effort is at https://github.com/taskcoach and there are multiple people at least supposedly interested in working on that. I can't predict anything about success or time-frame unfortunately, but encouragement there or recruiting other help is probably worth doing if you can
After Windows update, crashes on save or open actions
Mysterious Crashes after CTRL+SHIFT+S
So, the crazy workaround is to use Task Coach on some system that is pre-Windows-update and not crashing. Open a file. Save it. Close Task Coach. Then get the .ini which should have the info about what file-from-before to start with. https://answers.launchpad.net/taskcoach/+faq/1061 Copy/save the .ini and then with the Windows-update still, you should be having Task Coach automatically open the file, and with autosave on, both opening the file and saving will not use the filemanager interface — I...