This problem occurs when the root entity in the export mapping is empty, and a microflow is used to obtain child elements The root entity can be optional if the root XSD type has multiplicy 1, and contains no simple elements (i.e. string, integer, etc). A workaround for this issue is to map the root entity and to use 'obtain by association' instead of 'obtain by microflow'. The particular bug will be fixed in a next release.