[Web UI] Not able to click Hyperlink option on Jquery UI Page

Hello,

I am facing one issue while clicking on hyperlink from the webpage using katalon studio. I have created test script using “Selenium C# in Visual studio” and able to run easily. So i don’t know what is the issue in Katalon script

Steps:
1. open Url : https://jqueryui.com/
2. Maximize the window
3. Click on “Draggable” link option under “Interactions”

I am facing below issue

Issue :

Test Cases/Functional Test/IframeTest FAILED because (of) org.codehaus.groovy.runtime.InvokerInvocationException: com.kms.katalon.core.webui.exception.WebElementNotFoundException: Web element with id: ‘Object Repository/Iframe/Page_Droppable jQuery UI/a_Draggable’ located by 'By.xpath: //a[@href = ‘http://jqueryui.com/draggable/’ and (text() = ‘Draggable’ or . = ‘Draggable’)]’ not found

utility.UtilityClass.invokeMethod:0

Test Cases/Functional Test/IframeTest.run:36

Please do the needful and guide me on that