I am using a Global ID field in a polygon feature class and a related table with a GUID field to relate it to. In ArcMap and in the Web app I have created, the GUID field is populated with the related ID (Global ID) on creation of a record in the table. However, in Collector when I create a related record, the GUID field in the related table is not populating with the Global ID. Has anyone else experienced a similar issue?