editing metadata error: Document already has a "Document Element" node

[ARPCmaps]

Hello. Had anyone encountered this error message indicating that “ The document already has a "Document Element" node' when attempting to edit  metadata of a feature layer? 

[Andrew_Link]

Good day, I have had the same issue. Currently in search of an answer as well.

[BrittanyBurson · Accepted solution]

We are now experiencing this as well, on data exported originally out of Enterprise Portal 10.9.1 and brought locally as fgdb into Pro for metadata addition

[LStroupe]

We just ran into this exact issue today as well, but our Enterprise Portal is version 11.1