Can not even installing the package by git URL

[milanow]

I'm just simply following the instructing of documentation by opening Unity Package Manager and install it by git URL: https://github.com/Unity-Technologies/usd-unity-sdk.git?path=package/com.unity.formats.usd (coz I cannot find it in Unity Registry). But the page just freezing there and loading forever saying "installing the package..."

Is this normal or it is really my network issue?