Guild Wars 2

I’ve had the Endless Halloween tonic for many months and have no option to sell as it has been bugged since I got it.

Also could we have them updated to have the other Halloween transforms that aren’t in it?
Would be nice to have all the holiday transforms in one endless tonic per holiday.(or even combine them.

I heard it was and that you have to go to some npc to exchange it for one that can be sold.