Hi Team,

Post upgrading from Pega 7.2 to Pega 8.6.1 platform with the following Frameworks layer cake app, throws so many exceptions related to Property .pyXMLRootNode in many scenarios for inflight cases. 

1.Pega Foundation for Financial Services

2. Smart Investigate For Payments

3. Self-Service for Smart Investigate

It's a blocking issue in Pega 8.6.1 upgrade, do anyone else facing a similar issue? 

---------- Exception ------------- 

com.pega.pegarules.pub.clipboard.InvalidParameterException: property .pyXMLRootNode was expected to have a List or Page mode, but attributes are @Z:J?N:. Details: Invalid value for aAttr passed to com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl.adopt(String, String, char, StorageStream, List) at com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl.adopt(ClipboardPropertyImpl.java:4227) ~[prprivate-data.jar:?] at com.pega.pegarules.data.internal.clipboard.DirectStreamContainerV7.expandToProperty(DirectStreamContainerV7.java:807) ~[prprivate-data.jar:?] at com.pega.pegarules.data.internal.clipboard.ClipboardPageImpl.expand(ClipboardPageImpl.java:814) ~[prprivate-data.jar:?] at com.pega.pegarules.data.internal.clipboard.ClipboardPageImpl.put(ClipboardPageImpl.java:1785) ~[prprivate-data.jar:?]