Overlay UI does not respect flex direction

[Lerma_DX]

Why does the Overlay UI does not respect the flex direction in the hierarchy?

Top Frame is being placed at the Bottom and Vise Versa?

[GeorgeButler]

Do you have the “reverse” button toggled?

It’s the one with the two arrows pointing different ways.

[Lerma_DX]

I think I may have clicked it by mistake but it’s hard to see when it’s active or not.