Chatbox position is nameplate-based now, and the setting labels were updated for it:

144732 - "Set chatbox to above nameplate position"

144736 - "Set chatbox to below nameplate position"

But the alerts that show up when you change the setting still use the old wording:

24625 - "Chatbox display position set to above head"

144730 - "Chatbox display position set to below"

24625 says "head" while the setting says "nameplate", so the alert doesn't match the option you just picked.

144730 is the bigger problem - below what? As a Korean translator I can't leave it as a bare "below", I have to write either below the head or below the nameplate, and there's no way to tell which one it means.