Tried installing it to different folders, to different drives, re-downloading it, no matter what I do, it doesn’t see the v20 version. It does see the v19 version if I install that one instead, but obviously Unreal 5.1 doesn’t work with that one.
I got the clang installation exe from Development Requirements documentation article.
Also having this same issue. I am on windows 10, trying to build a linux shipped build but getting an error saying I don’t have the correct SDK installed despite installing the exact one referenced in the doc tools. it does not show up in the tool menu as installed