Just reporting this issue for investigation in future upgrades. I spent the last three hours creating several different forms. 4 of them reached a point were the when the update button was pressed the page would just hang with the save wheel rotating indefinitely.Nothing special was done with the forms that ended up generating this error, they were simply long (15 to 25 fields).
there was no way that I could salvage them once they generated this error, I simply had to delete them and start from scratch. Making a copy of them simply created another form with the same error.