I finished a chapter of the story, started a new section, waited 5 minutes and logged off for the night. Logged on in the morning, it put me back at 4.9 stars and I had to do the 8hr portion all over again. This happens all the time with timed events. Not sure if this is happening because the devs are too lazy to fix it, because they want you to pay to complete the same thing multiple times or both. So sick of progress not saving when energy replenishes so slowly.