When using the Copy geoprocessing tool in ArcMap and ArcGIS Pro on an enterprise geodatabase feature class participating in a relationship class with a table that has attachments enabled, the names of the copied attachment table (ATTACH) and attachment relationship (ATTACHREL) are erroneously changed.

Workaround

Workaround 1 only works for ArcGIS Pro while the other workarounds also work in ArcMap

• Before running the Copy tool, change the names in the 'To' column.
• In the Catalog pane, drag the FeatureClass from the first geodatabase to the second geodatabase.
• Right-click the FeatureClass, select Copy, right-click the second geodatabase, and select Paste.

Steps to Reproduce