Hi,
I noticed something strange. Please take a look at this page [1].
The product is available in two formats (eBook/print). Please try switching through the options. You will probably notice that the price below the option field that determines the price of the chosen format won’t update when switching options or won’t render at all [2].
I tried using the original template to be sure it’s not a template thing and the same happens there.
Are you able to reproduce this on your side / do you know what may cause this behaviour?
Best regards