Loading the Advanced Form Designer causes the form to lose all formatting

This is also happening to me. I have cleared my caches in my browser and jot form and can't work out what the problem is. The form I am working on has been created in v4 but using the "advanced" designer clears all the formatting. 

I'm seeing you have 100+ forms on your account. Can you please tell us which form you're having issues with along with a more detailed description of what's happening?

From how I understood it, you're saying that your form loses all the formatting once you load the Advanced Designer.

We can test this further if we know the form where you're seeing this problem. And if you have any screenshots to better explain what you mean, that would be helpful too.

Complete guide: How-to-add-screenshots-images-to-questions-in-support-forum