Hello,
Great software. However, I cannot get it to save ot close without gong "Not Responding", hanging and then crashing. The software is set to save every change that is made, so nothing is getting lost. When opening the software it asks me to break the lock on the previous file. This happens when closing or attempting to save the file from the Fil e menu. It also doesn't matter if the close command comes from the File menu or the close box for the window. It is running a local installation on Windows 10, latest version.
This is a support request more than a bug. But regardless, removing the .ini file should clear things and make everything work. Please try that and report back. https://answers.launchpad.net/taskcoach/+faq/1061