Why did these three projects appear in my launcher library

After I upgraded to 5.2 Release from github source, these three projects appeared in my launcher library.

They are in my Engine folder (not my Projects folder)…
UE5_Release\Engine\Programs\SlateUGS
UE5_Release\Engine\Programs\UnrealLightmass
UE5_Release\Engine\Programs\Unsync

Did anybody see these show up in their projects library in the launcher too?
Are they really projects? I didn’t want to open them because they are in the engine folder.

Same here, did you figure out what they were for? Thanks.

No I haven’t yet, they are still there, I just left them alone.

Also wonder what these are, I can’t find any information online.

I’m guessing this is a Launcher bug/oversight that no one is addressing. The launcher shouldn’t be picking up those projects.

I have three engines installed.
One from the launcher (to download plugins), a release version from GitHub and a preview version from GitHub.
I now have each of those projects twice in “My Projects”, both from the GitHub versions.
It seems the launcher engine does not add the projects.