| Bug ID Number | 
                        BUG-000160934 | 
                         | Submitted | August 25, 2023 | 
 
                        | Last Modified | March 25, 2025 | 
 
                        | Applies to | ArcGIS Online | 
 
                        | Version found | June 2023 | 
 
                        
                        | Operating System | Windows OS | 
 
                        | Operating System Version | N/A | 
 
                        
                        
                        
                        | Status | Known Limit
                            
                        
                        
                            After review by the development team, it has been determined that this issue is related to a known limitation with the software that lies outside of Esri's control. The issue's Additional Information section may contain further explanation.
                        
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                            Additional Information
                            The issue of KML being an unsupported format is a known limitation. Similarly, the export option on the home application in Portal for ArcGIS does not support KML. This is because KML is not an export format that the createReplica operation supports. Hosted downloads uses the createReplica operation for a more robust and reliable download experience. If users have critical workflows that depend on KML files, continue to using the existing download system.
                        
                        
                            Workaround
                            Uncheck the Hosted Downloads check box as it uses the ArcGIS Hub download system for generating download files. This system uses the service's query operation instead of createReplica.
                        
                    
                    Steps to Reproduce