Not able to install FAB and Quixel Bridge Plugins

Summary

I made a clean reinstall of my UE5.6.1 to a new hard drive but the FAB/QUIXEL plugins are not installed automatically, and i cannot even insntall them manually because the add to engine button doesn’t do anything.

I seen below someone else also had the same issue, and marked as fixed but no one wrote the fixing steps into the ticket or comments.

What type of bug are you experiencing?

Plugins

Steps to Reproduce

Try to install fab/quixel plugins after fresh 5.6.1 engine install

Expected Result

both plugins are installed properly

Observed Result

unresponsive Epic Launcher

Platform

Epic Launcher

Operating System

Windows 10