Hi xu’qing-lin,
Could you please provide us more information such as:
- Your steps (the way leads to this issue).
- Your logs (or something displayed and you confirmed it was a bug).
- …
Btw, you need to follow: http://forum.katalon.com/discussion/4405/read-this-first-before-reporting-an-issue-bug#latest to report an issue.
Many thanks.