Just an FYI:
Issue ID: #64083611
Your ticket has received the following response:
Game Master Tavynael here.
I am sorry to hear that you are having a hard time getting the Not for You achievement. We are aware that there seems to be a problem with the pillars not lasting long enough due to the stat squish, and are looking in to it.
We have submitted bug reports on our end, but we do suggest that you also submit a bug report. You can do that in game by hitting ESC → Help → Report a bug on the left hand side of the window.
We do appreciate your patience while we look into this and hopefully you can get the achievement soon. Have an awesome rest of your day, and may your loots be epic! ^.^
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Regards,
Blizzard Support