grouped product reviews showing wrong rating

Hey

I wanted to link the reviews of two products, so I did that because you have a setting for this:
https://pasteboard.co/sQkY0ccoPfFN.png

But the reviews are showing wrong on both products:
https://pasteboard.co/XSWyT3nBl28m.png

I tried debugging my site by disabling all plugins, but issues persist.

These are the products I linked:
https://thebgang.com/tofu-press/
https//thebgang.com/tofu-press-2/

Try to post a review on either one and you will see the error.

Thanks for the suppport