When you see the warning about the dates, it had saved a 'Draft Save'. If you select the 'Save Anyway' that is at the bottom of the warning message about the dates, it should be doing the 'Full Save' as you had initially intended to do. If you go back into Edit mode after that was done, it doesn't give you the message about a Draft Save existing, so that means 'to me' that the Full Save was done, which would clear the Draft Save.
Unfortunately, when you 'save that profile', you are always going to get those warning messages because you can't 'correct' those dates since they are already correct.