I had been monitoring Lufthansa business class award seat availability for booking through United miles. As of last week, on the routes that I was interested in (both TATL to FRA, and from FRA to India), there were multiple award seats on just about every day in August and September; my travel is in November, so I kept watching every few days (the seats would be released 179 days before on the UA website).

Suddenly, as of two days ago, they are all gone -- even those that had shown multiple seat availability, almost every day in August and September -- now show zero availability.

Anyone know what is going on? Thanks.