I can confirm that it is still not working. I am currently in Shanghai (Trying out a different VPN service is the only reason I can post), and cannot connect through Vypr VPN. I have been through all of the troubleshooting steps twice, once before contacting support, and again after getting direction from support. Uninstall, confirm no trace of the helper, reinstall latest version.
If anyone from Golden Frog is reading this, your directions for High Sierra and the Security and Privacy settings are not correct, there is no list under trusted or identified developers.
I too experience the "connect button being unresponsive when clicked" issue, and am running the latest version.
Hope they can fix this soon. It is disappointing that other VPN services work over here, but this seems to be an ongoing issue. I don't want to switch services, but I may have no choice if this can't be fixed in short order.