BUG-000153968 for ArcGIS Pro

Bug ID Number	BUG-000153968
Submitted	November 24, 2022
Last Modified	July 7, 2025
Applies to	ArcGIS Pro
Version found	3.0.2
Operating System	Windows Server
Operating System Version	2019 64 Bit
Status	Known Limit

Additional Information

Amazon AppStream 2.0 does not include native support for traditional Windows mapped network drives, e.g., using a drive letter such as Z:\ to access a network share via a UNC path. Even though it will have appeared to work for the customer in File Explorer, this capability is not actually supported. Users cannot persistently map internal network drives directly within an AppStream session. AppStream allows files to be uploaded and downloaded through the local file system, but it does not map the local drive as a drive letter. Instead, they must use "My Files" in the AppStream toolbar. Drive mappings do not persist between AppStream sessions unless they are explicitly scripted using domain-based user profile redirection or folder redirection. Multi-user environments may require drive mapping automation via user profile login or group policy scripts, for example, that can configure the correct environment each time a session is started. Keep in mind that even if network drive permissions are configured carefully and correctly, latency between AppStream and the file storage system can impact performance and cause timeouts to occur when the application attempts to access network resources.

Workaround

Options include: - Use Amazon FSx for Windows-based file sharing with drive mappings configured in your domain. - Use Amazon S3 for scalable storage combined with Amazon File Gateway if SMB access is required. - Redirect user folders via group policy settings or AppStream session scripts.