Unity Issue Tracker - [Windows 11 ARM] Providing command line options -a arm64 or --architecture arm64 downloads wrong editor architecture (x64)

Active

Under Consideration for 3.17.X

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Found in [Package]

Issue ID

Regression

[Windows 11 ARM] Providing command line options -a arm64 or --architecture arm64 downloads wrong editor architecture (x64)

Package: Hub

-

Dec 10, 2025

Steps to reproduce:

Open terminal (CMD)
Try downloading any Unity editor using -a arm64 or --architecture arm64 command line options
Example: "C:\Program Files\Unity Hub\Unity Hub.exe" -- --headless install --version 6000.3.0f1 --changeset d1870ce95baf -a arm64

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Actual results:
Version is downloaded with x64 architecture not ARM64

Expected results:
Version is downloaded with ARM64 architecture

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Reproducible with versions:
3.15.3

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Tested on (OS):
Windows 11 ARM 64

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Notes:

Works as expected on MacBook M1 machines
https://docs.unity3d.com/hub/manual/HubCLI.html - states these command line options should work
Providing NO options, the downloader defaults to the correct architecture ARM64