Yesterday, I was playing both my Level 53 Redguard spellsword and my Level 45 Khajit mage. I noticed that Steam was doing something (bar increasing 14%, 15%, etc).
Iwas with my Khajit. Later, went to play my Redguard (which I had played the day before--he had just finished Bloodline), and noticed my two Redguard saves were now back
at Level 52 in the last week of February-- not level 53 from March 14.
Any ideas why this would happen?

Oh, and I have no mods at all, just the Dawnguard and Dragonborn DLCs installed by Steam.