This is unfortunately not the first time this has happened, but I never figured out the cause and now it has happened again. After a system update, my phone's Pictures app has once again essentially unfavorited all of the images I had marked as favorites. There were several listed in the Favorites tab, but then after the update it was empty. If I can't figure out exactly what is going wrong and how to prevent, does someone at least know who/what the guilty party is here? Is it a Samsung issue, or an Android (so I guess Google) issue? Since it results from a system update, I would kind of think Android, but the truth is this never happened with my old phone, so that makes me a bit suspicious of Samsung. Thank you.