My issue seems to be slightly different from yours. Some of my contacts pictures won't update...but there are two that do update. Whenever they update anything (not just new pics), their picture defaults to their facebook picture. I took my own pictures for these contacts that I saved to my phone, yet it reverts back to the facebook pictures everyday on its own. It is quite annoying considering they don't always even have a picture of themselves as their facebook picture. I am currently looking at a Brazilian flag.
