Personally I have avoided FM instant web publishing. But now I a client that really wants it.
The firs thing I noticed is that any script with a New WINDOW step is now a virtual window.... fine it does look as nice but it works.
But now I am finding none of my button on this virtual window work including one which is only one step: Close Window.
Here are some specifics.
User on main menu click a button which opens a new windows as a card which has a series of button that simply navigate the user to other layouts, plus a button to close the window.
The script changes the step to Open Virtual Window when in IWP... again fine. But I can not click on anything.
Here is a screen grab of the details: