Looking at late October/early November - OKW and SSR no availability??

[sharadoc]

We would like to plan our next trip in the fall for the MNNSHP and MVMCP, and if we can get a bounceback I would like to book it during our March trip. When I plug in some dates, I see availability everywhere BUT OKW and SSR. That seems crazy, at least SSR is usually the last one available. I wonder why??