Katalon 8.2 Desktop BUG

When I use Windows.waitForElementNotPresent ,I just want to get true or false results,but throw StepFailedException. Can anyone help me?

add FailureHandling.OPTIONAL so it becomes waitForElementPresent(to, timeout, FailureHandling.OPTIONAL)
see https://docs.katalon.com/katalon-studio/docs/webui-wait-for-element-present.html#description