Required rights to show private products in WooCommerce Shop Overview

I am developping a webshop for B2C and B2B customers, using Enfold theme, WooCoommerce plugin and amongst others Groups plugin (itthinx) to give B2B customers access to specific products.
The groups I have given the right read_private_products. The specific private products can be displayed for that group now, but they are not visable yet in the WooCommerce Shop Overview.
The private products are visible to administrators.

Do I need to add more rights? Or does this have to do with the the theme?

Due to it’s customization, I think it’s your responsibility to figure it out what the problem is. ( As it’s third party issue, I have doubts the author should/would provide help on this )

Probably you’re missing one important thing.