Plugin for Unreal Engine with linked GitHub account is not available (EM: 404)

[CaTwoPlus]

I followed the below guide on how to link UE with my GitHub account, and after receiving a confirmation email about successful linkage, the UE plugin and demo is still hidden/unavailable.

https://www.unrealengine.com/en-US/ue4-on-github

On GPUOpen, the below is stated:
"The Unreal Engine plugin is available here https://github.com/GPUOpenSoftware/UnrealEngine/tree/FEMFX-4.18. This link will only work for those with access permissions to the UE4 repository."

[CaTwoPlus]

Had to accept invitation from UE on GitHub.