When saving a model to the Mart Server I receive the following error: 'Expected a name but was EN (4288486)

Issue:

When saving a model to the Mart Server I receive the following error: 'Expected a name but was END_OBJECT at line 28866 column 2681 path $[0].REPORT_CREATED_OBJECTS'.

Symptoms: 

erwin Data Modeler cannot save any models to the Mart Server

Versions: 

erwin Data Modeler 2020 R1

Mart Server 2020 R1 SP1

Resolution:

This is error is caused by erwin Data Modeler and Mart Server being on incompatible versions. Even though erwin Data Modeler can connect to the Mart Server without an issue, it will need to be upgraded to 2020 R1 SP1 to save Models.