I came to this page with the same issue and I have found that I have 2 settings.json files:

1. In C:\Users\<username>\AppData\Roaming\Code\User\settings.json

2. C:\...\project\.vscode\settings.json , so in my workspace (opened folder)

The first one had the -vv setting, the second one didn't. Adding -vv to the second one fixed the issue for me.