ALL form formatting breaks when using Advanced Designer

Trying to use your service to put together an embedded Contact form for a client's site. It's an Adobe Muse site. It seems that every single time I try to use the Advanced Designer, it breaks ALL formatting and displays a default form- with one exception, the "Submit" button will be the correct one that I chose through the "mini designer." The only way to get what formatting I had back is to revert via the Revision History system- which, adding insult to injury, often DOES seem to display most of my form's proper formatting in the preview.

The Advanced Designer worked the way i'm assuming it's intended to do ONE time for me- it seems you've set it up to dynamically (and with unnecessary animation, no less) display the user's changes as the formatting is being tweaked. Like I said, it worked one time. Every time since then, I can get only a couple of the settings- the Font Size slider for instance- to display a change for a split second before the formatting reverts back to the default form- with an animated flourish as if to mock me and my approaching deadlines.

I tried using the editor in both Chrome and Opera, so I'm fairly confident the problem isn't on my end. It's really a shame- this product would be perfect for what I'm trying to do, but it simply can't seem to get me there at the moment.

I assume this was the form https://www.jotform.us/form/62517866144158 (as there were only 2 forms on your account)

I cloned your form and test it on the Advance Designer but so far I could not reproduce the mentioned issue of the form having broken formatting after using the Advance Designer.

What I did noticed is that form responsive was enabled on the form. Which makes the form load by default to the Advance Designer having a default mobile layout.

This specific form was loading with default mobile layout because the form was using a mobile theme. If you remove the form theme and reset it to default, the form will use a desktop layout by default.

Since the mobile responsive is checked on the form, the mobile layout was the default layout.

You can check the video below that shows this dynamic formatting of the form due to mobile responsive being enabled.

As you can see on the video I unchecked mobile responsive in the end and it makes the form load with desktop layout by default.

Hope this help. Let us know if there is more we can help you with.

Thanks.