Cannot install modules with dependencies through PowerShell Gallery on 1.3.0-preview1

[Gijsreyn]

Prerequisites

• Write a descriptive title.
• Make sure you are able to repro it on the latest released version
• Search the existing issues.

Steps to reproduce

On a fresh Windows Server 2025 box, I installed PowerShell 7.6.2 with the MSI. After that, I installed the 1.3.0-preview1 version and removed the shipped 1.2.0 Microsoft.PowerShell.PSResourceGet. Then, I tried installing the Az module to see the speed improvements, but unfortunately, an error occurs:

When I register MAR with Register-PSResourceRepository MicrosoftArtifactRegistry, it works (as this becomes the default).

Expected behavior

Install the `Az` module (and its dependencies).

Actual behavior

See error in image

Error details

Environment data

ModuleType Version    PreRelease Name                                ExportedCommands
---------- -------    ---------- ----                                ----------------
Binary     1.3.0      preview1   Microsoft.PowerShell.PSResourceGet  {Compress-PSResource, Find-PSResource, Get-Instal…

Key   : PSVersion
Value : 7.6.2
Name  : PSVersion


Key   : PSEdition
Value : Core
Name  : PSEdition


Key   : GitCommitId
Value : 7.6.2
Name  : GitCommitId


Key   : OS
Value : Microsoft Windows 10.0.26100
Name  : OS


Key   : Platform
Value : Win32NT
Name  : Platform


Key   : PSCompatibleVersions
Value : {1.0, 2.0, 3.0, 4.0…}
Name  : PSCompatibleVersions


Key   : PSRemotingProtocolVersion
Value : 2.4
Name  : PSRemotingProtocolVersion


Key   : SerializationVersion
Value : 1.1.0.1
Name  : SerializationVersion


Key   : WSManStackVersion
Value : 3.0
Name  : WSManStackVersion

Visuals

No response