It might just be me, but with DetailArmorBar the armour is not hidden. Am I doing something wrong?

If you are on Minecraft 1.19, are you using AutoHud 1.7.2?

It should work on Minecraft 1.18. On Minecraft 1.19, I attempted to re-add compatibility with version 1.7.2 (released a couple hours ago). Did that not work?

It's 1.19, I didn't see 1.7.2. With that one it did work.