Unreal Engine Launcher failed

I have built editor from sources. When I’m trying to access to Marketplace editor ask me to install Unreal Engine Launcher (from Engine/Extras/UnrealEngineLauncher). During installation it fails with this message:
“An error occured while applying security settings. Users is not valid user or group. This could be a problem with the package, or problem connecting to a domain controller on the network. Check you network connection and click Retry, or Cancel to end install.”

I also tried to run this installer separately but it keep failing.

Downloaded latest UnrealEngineLauncher from web and it starts to work

Hi undersun81,

Thanks for the report! Looks like the github installer for the Launcher is a little outdated. We’ll get right onto it.

Thanks again!
Leigh

Github has been updated now