Is the connector inline configuration broken?

I'm making a new connector for Teams, and I found out that when I add a connector to a channel and hit the configure button, now I don't have the inline configuration page but instead I have a link "Visit site to install" that goes to the configuration page. 

I created another one a couple of months ago, and it was working as it normally does, showing the configuration page embedded within Teams UI. Thinking maybe there was something new, I tried to create connectors with the latest version and examples provided on Microsoft's web pages, and the result was the same link "Visit site to install". I also noticed that the "Connector Developer Dashboard" was broken last month since it wasn't saving the field "Valid domains", but now it works and now I have this other issue with not showing the configuration in the right place, making it difficult to get the webhook of the channel.

I appreciate any guidance on this. Thanks!