Hi. I have recently installed hotfix 39 to my MVC site and notice that on the form builder the apply functionality for form controls has broken. When I add a control, a checkbox for example, and click the Apply button I just get an unstyled representation of the properties form and the following errors in the developers console:@Uncaught ReferenceError: Sys is not defined at HTMLFormElement.onclick@Can you please advise how I can resolve this. Thanks.
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