Having a issue with latest build. What info does Coffee Cup need for submission. On restart it said not to worry, file has been restored ?

I would open a support topic.
https://www.coffeecup.com/help/myroom/opentopic/

Thanks Eric, the project appears to still be intact so the restore did its job. I had quite a few nested containers with attributes and was adjusting flex when it happened. Other than noticing earlier a Windows 10 update had taken place I am not sure but overall 10 has chugged along pretty good with this software.