Submit a bug report
For a highly user interactive software such as Gantt Designer, it is impractical and impossible to completely test it in the lab. Hence we need you to feed back should you come across anything untoward. Even if it is not a problem, by reporting it you would receive an explanation of why and how things work.
You are welcome to report any problem or difficulty you come across. We cannot guarantee that all problems reported will be corrected but we will try our best.