Yes, I’ve installed the latest version.
And yes, VS 2017 shows and is checked in the custom installer.
I’ve solved my problem.
I had VS 2017 installed to a custom location but added a space to the name of the root folder by accident.
VisualGDB did install to that path but did not add the space. So it was in a different folder.
Reinstalled VS 2017 with the right path and it’s working now.
Wouldn’t have found that without the suggestion.
Thanks