Voiceflow workspace

I saw some guys are facing the problem in selecting between Google Assistant and Alexa. I just want to asks on what site are they executing their projects:
https://creator.actions.voiceflow.com/workspace or https://creator.voiceflow.com/workspace because I am not facing this issue and working fine with it. Want to know if I am doing anything wrong. Please guide.

Well in case of https://creator.voiceflow.com/workspace I’m able to select between the either of two voice assistants. I guess the other link is still in development mode and so some of us are facing issues.