I initially thought of this, but nope its showing as a Rouge 321 with Bus class seating(may change to a Rouged 7M8)

I did a spot check on a bunch of other Caribbean routes & dates- some Rouge some not.
I dont see a single other route with this total blockade. As a matter of fact, most of the routes
including some obscure ones like St Vincent, St Maarten etc actually show green- Upgrade available for Latitude not Waitlisted.

Puzzling that it morphed overnight to this. Oddly , If I search using Aeroplan points and a Latitude reward, which of course cant
be combined with a Companion cert, when clicking the Upgrade tab, the Stop sign with the X changes to "Waitlisted".
Maybe AC's IT dept at it again? or a purposeful decision on a high J demand route to prevent blokes like me from
using "Latitude Attitude" plus Companion to get an upgrade? Or they are planning to use ex-Lynx a/c on this route but havent changed the schedule placeholder yet?