JakubMisek Tank you for your response. Sorry, my post was a bit confusing, As I mentioned in it, I've tested a newest version as well. In fact, I'm enjoying a new auto-update feature in VS2019 now, so I'm on the latest version (1.40.11890). Test explorer is working just fine, and even if I manage to select active phpunit configration BEFORE menu item is gone, test are running as expected. But I'm not able to select phpunit configuration later.