In Beta 1 I had the "People Album" in photos all setup and iCloud Photo Library enabled/updated completely. I had to do a reset/wipe on my phone and re-enabled the iCloud Photo Library and the "People Album" was back at 0 with a message that it was scanning. This never changed after a week. After the update today to Beta 2, it still appears to be stuck but looks different. Says 8 of 22980 items processed and hasn't gone past that.