If you have built a custom theme, you can also change the Visody Viewer gallery settings.
Please go to Visody -> Appearance -> Advanced:
Here you can customize the gallery item selectors to make the Visody viewer functional again.
You can also add some custom CSS here if you like.
PRO
If you are on the PRO version, you can also list custom block names here since version 1.0.4
With the block editor being the new standard, themes and plugins often use their own WooCommerce product image block names.
Simply add the name of the custom block to the list and the 3D viewer should appear in the WooCommerce product loop item as well.