Cloning Layout using the code supplied by Esri no longer work in 2.5 - see question below
In the UI the layout is cloned but not renamed; the page size is lost. All the elements are shown but they don't exist! The element list in the cloned layout is empty. The elements can be selected but their properties cannot be shown.
In code the layout exists but it does not have any elements.
If the aprx is saved; closed and then reopened then actually the clone is OK.
Is there a workaround to get the clone to update correctly?
This is a bug in the 2.5 version of Pro. This has been fixed in 2.6. Also, this has been identified as a fix to be included in the Pro 2.5 patch.
Thank you for reporting this!