Trouble Exporting Private Snap to Snap Store Proxy via Store Admin Tool

I’m currently working with the Snap Store Proxy (Enterprise Store) and have been using the store-admin tool to manage Snap exports. The proxy is running in air-gapped mode.

A privately uploaded Snap was created and published to Snapcraft. However, when trying to export it using the store-admin export snaps command, the following error occurs:

Error: No matching Snaps

As a test, the Snap was temporarily made public, and the export worked immediately. This raises the question:

Is it possible to export private Snaps using the store-admin tool while keeping them private in the Snap Store? Currently, there doesn’t seem to be any other way to import private Snaps into a local Snap Store Proxy.

Any guidance on this would be appreciated.

Best regards.