Festival Automaton - defeat Toxx

I've been trying to get this achievement. I've completed the dungeon twice, but no achievement. Am I missing something?

Is there any chance you didn't do enough damage to get the kill? I don't know if the achievement tracks completing the dungeon or tagging the kill.

I don't think so, but I'll try it again.

I was thinking more like there might be two dungeons with Tixx and Toxx? Or, something like that?

You're doing Toypocalypse. You need to do the one near Tixx himself: Tixx's Infinirarium. This one requires you to paint blast dolls and the like. Not create toys to defeat toys and sometimes Toxx. The last and final boss should be Toxx in the Infinairarium. Once you defeat her, for the last time, the achievement should pop.

https://wiki.guildwars2.com/wiki/Tixx%27s_Infinirarium

The battle should look something like this:

Hope this helped.

Yeah, that's the one I did. I must have just missed the rewards, or maybe didn't tag Toxx. Saving Wintersday is up for today, so I'll do it again, and wait at the end, just in case. (Saving Wintersday is the daily for the same dungeon, isn't it?)

Yeah, that was it. I got the achievements, and then heard the same speech. So, I know I made it that far. Must have not tagged Toxx during the fight.

Thank you!