Same position regardless of settings

Hi,

I always have my custom content added at the same place: https://gyazo.com/c1409680e039109460eb6c26cf3e1327

Regardless of the settings I set: After Order Table/Meta, After customer details.

Any reason?

I thought I could put the data here: https://gyazo.com/d8ea77172a49f1f6eaad85277127d61b