Robbie keeps adding twists. Season 9 is trying to become the most complex and complicated season.
Gavin willingly* let himself die** as part of a private deal***. The other twists are part of normal game play; the "Role switch" was a mistake so it never really happened.
*Gavin was at first unwilling for it to occur, but a deal was made and he is currently dead. This is not a big deal.
**Should any large-scale twist (Alters the game majorly, such as a storm or a zombie apocalypse), Gavin may be able to return to the game
***Deals such as the one made, as I may refer to as "Selling your soul", are not recommended to be made all the time. This does not put either the campers or slashers at an advantage, and it should not change the game play for anyone else.
You should just quickly cycle through the season. Do a night and a day as you get all the votes are in or when it is obvious RatedG someone is going to be voted off.