This may not be a glitch. Margaritaville owners are still able to book that resort. If anything, Non-Margaritaville owners shouldn’t have been able to book it in the first place, because VIP benefits do not apply there.
Actually, the VIP Benefits writeup is very specific about this VIP benefit that provides:
Access to Margaritaville Vacation Club® by Wyndham Resort Inventory1,7
And the columns say 6, 8 or 10 months out depending on silver, gold or platinum.
The two footnotes are:
1-Subject to availability.
7-At the Standard Reservation window, a minimum of 50 percent of Margaritaville Vacation Club resort inventory will be held exclusively for VIP members. VIP members can access this inventory at different time lines based upon their VIP tier.
and of course VIP benefits are subject to change without notice.
So if they were sticking with 7 they would save rooms for VIP. But the special messaging on the site implies they revoked the benefit from this resort.
Bob