When using WebDav web server (IIS 8) with GanttProject, opening file gives error message ‘Premature end of file.’. Saving file to WebDav folder works ok. I have checked that .gan file which I try to open is not empty and looks ok. If I copy it to my local hard disk, it opens without error messages.
Any idea what could be wrong? GanttProject is version 2.8.8.