No format option under the Publish tab in Storyline 360- it has disappeared- can anyone help?

Hello Ruby!

I see Dwayne already helped you out here, but I wanted to follow up and assure you that you aren't missing anything! 

We removed the option to publish for Flash when Microsoft ended support for Flash, so all of your courses will automatically publish in HTML5 format. You won’t need to change anything in Storyline 360 since this is handled automatically.

Let us know if you have any other questions!