I've tried the reservation system almost every day for a month+ now with the same results.
I can get Staroption reservations for Kierland (my developer bought home resort), St. John, and Harborside.
But I get the "Request Timeout" error message for all other resorts including Hawaii, Colorado, etc.
I noticed now at the bottom, there is a new note that says:
"Please note:
The updated Villa Resort Availability Finder can now recognize most ownership types, however, certain ownership types do not have access."
This leads me to believe that Vistana has ABSOLUTELY done this on purpose, basically locking owners (possibly just resale owners) out of making any Staroption reservations at other than their home resorts. Most likely with the express purpose of reacquiring this inventory for the new Marriott booking system.
This seems highly illegal, possibly class action lawsuit illegal.