Copied UIB page does not work and event mappings in viewport sub-page are lostDescriptionWhen duplicating a variant with a viewport whose sub-page has components configured with scripted property values and events mapped to page script, the event mappings associated to page scripts in the viewport sub-page are lost.Steps to Reproduce In UIB create a page/variant with viewport componentCreate a subpage in the viewport Create a page script in the subpageCreate a event mappings for a event source (like page ready or button click) mapped to the page script created above Duplicate the variantGo to the viewport subpage in the new duplicated variant The event mappings mapped to page script are missing in the viewport subpage of the newly duplicated variant.WorkaroundUIB developer has to manually reconfigure the lost event mappings in viewport subpage of the newly duplicated variant, by referring to the viewport subpage of the original variant. This problem is under review and targeted to be fixed in a future release. To receive notifications when more information becomes available, subscribe to this Known Error article by clicking the Subscribe button at the top right of this form.Related Problem: PRB1589690