Why doesn't Figma Sites allow to scroll horizontally when the auto layout content is right aligned?

I’ve a frame where I need the content to be right aligned while the content overflows his parent:

In Figma Sites, this doesn’t work. Whereas when aligning the child to the left, it does work.
In fact, when you try it you get this error when trying to publish:

However, on Figma Design you can do this and even prototype it and it works!!!

Can’t really understand it 🤷🏻‍♂️

 

I was wondering how is this affecting to left to right reading languages 🫠

Thanks in advance for addressing it.

Best,
Jordi