Why I'm missing my progress in form builder?

Everything I did Friday for the last 20 minutes (I was working all day on form) is missing.  It's about 7 fields and 14 conditions).  I did not log out so as to allow time for updating, so I'm not sure what's happened. 

Also, my form now has a yellow background when I edit it, not sure where that came from.  It does not show when you see the live form which is good.

Thanks for you help/advice.

Thank you for contacting our Support.

Please try using the Revision history feature: https://www.jotform.com/help/294-How-to-view-form-revision-history and see if you can revert to some earlier version of your form. If that doesn't help, I'm afraid that we're unable to recover the data since that means that your Browser session was over and your progress wasn't saved.

I checked your form, but I wasn't able to replicate the yellow background problem:

If you have any further questions or need any assistance please let us know.

Thank you!