Hello! I'm using ExB Developer 1.3 with ArcGIS Enterprise 10.8.1.
When I duplicate an Experience from the main page (by clicking on the ellipsis button and selecting duplicate), the new experience is created but I can't open it. There is no ownership shown to the item and when I try to open it, I get the following error:

My account is an admin on the Portal, and I can open any other experiences that haven't been duplicated.
The new item doesn't even show up in Portal, but somehow does appear on the main page of ExB??
Any thoughts? Is this a bug?
Thanks!
Alejandro