Not sure if something is up - or whether this is normal - but I've been searching for Asia-ORD and v.v. through August 2019 over the last few days and there's generally been pretty good availability (F between NRT and ORD and J intra-asia).

Today the AS calendar is coming back pretty much blank for JL F. Korean Air and Emirates are much more prominent (weren't there the last few days). Odd that all JL F dried up within the last 12 hours or so.