Hi there,

i´m having a problem with canceling the unpublish event in the backoffice. For example:

// Register event
ContentService.UnPublishing += LinkTrackingEventHandler.ContentService_UnPublishing;

// Method
public static void ContentService_UnPublishing(Umbraco.Core.Publishing.IPublishingStrategy sender, Umbraco.Core.Events.PublishEventArgs<IContent> e)
    {
        e.Cancel = true;
    }

When i try to unpublish a page with the above code, the grid editors stops working. Nothing happens when you click on them (the edit content screen should slide in from the right).

I´m using Umbraco 7.3.1, is this a known bug or am i missing something? I get no error messages in the web inspector or anywhere else.

Thank you for your help