Orientation of rectangle stimulus in builder

I am on v 2022.1.2 (Mac)

I feel a bit thick. I am trying to have a rectangle at an angle.
It seems that when I specify ori in the polygon stimulus component, it does not work. Specifically, regardless of ori = 90 or 0, it shows a horizontal rectangle. Values of other angles, e.g. 45 result in a polygon rather than a rectangle being displayed. Is this a bug or am I doing something wrong?
I wanted to attach a test file, but the upload does not seem to work either :frowning:

when I try to upload a script, it says that the file I want to upload has 0 bytes, but it does not…