Failed but can not take screenshot

I am using Katalon Studio version: 5.4.1

I created a testcase with having fail . Before run test case, I set page load timeout is 30 and ‘Take screenshot when execution failed’ checkbox is checked. At last, I run testcase.

But after all, test result is not expected for me. In test result I found that the failed step is displayed with green check but result of test case is failed. And I did not see any screenshot of failed step.

Please help me!!!