Ok, sounds perfect. I wouldn't worry or change a thing.
Tyson took his first "break" starting in Feb and ended in June. He went 2/2 - 6/5 without a meal and take a guess what his weight was....yup 810 when he started.
So based on past experience, all that I've read, and my current experience with Tyson, I would wager that Odyn is taking a break and will eat when he's ready. It'll likely be a few months. Try not to worry (I know, easier said than done). Like Dakski said, as long as he doesn't drop below 730 grams or so I wouldn't worry. Keep offering every few weeks.
As of now, I would say it's annoying, but not a health concern, just a BP being a BP.