UIStroke/BorderPerPixel doesn't work on a UIObject with UICorner parented to a BillboardGui

I’m making a nice looking healthbar, so I’m using a combination of UIStroke and UICorner. But when I playtest and look in Studio, UIStroke doesn’t do anything. It works fine on a screen gui, but I have no idea why it doesn’t on a billboard gui.

To my knowledge (I don’t usually work with GUIs) this shouldn’t happen

Here’s a picture showing what happens.

EDIT: I figured out why it didn’t work, UIStroke was under UICorner, but when I parented it to the text label itself, the UIStroke acts as if there was no UICorner (No round edges)

Found the solution, the billboard gui size was too small XD