Something went wrong in the latest version. In version 3.9 the related products carousel on the single product page is displaying wrong like in the image img-ver-3.9. In version 3.7 everything is ok img-ver-3.7. The mobile version of 3.9 is also displaying correctly, only the desktop version is wrong.
Please let us know if you have a workaround for this issue. We reverted to version 3.7 until we have a solution.