I'm trying to find an award seat from LAX-NRT in F in early December but it seems SQ doesn't release saver award space at all anymore? I scanned through several months and did not see a single saver fare, although usually 2-3 days a week have advantage fares pricing out at 182,000 miles. Does anyone know if this is a glitch, temporary change, permanent, or whether they tend to release award seats close to departure?