I've been noticing my contacts gradually disappearing for the past few weeks. Some of my iMessage conversations show up with no name and when I go to look, it's someone that I know who was definitely in my contacts. Sometimes, the missing contact will be temporary. I'll get a call from an unknown number on my Watch and then look on my iPhone and it was from my brother. Sometimes the missing contact syncs over iCloud and the deletion is permanent. It's driving me nuts because at this rate, I'll lose all my contacts. Has anybody experienced this?