heart css issue on shop gallery (not product page)

I think I have some issues with the heart turning grey after I add a product into the wishlist on the shop gallery (the heart that is on the photo). After I add a product to the wishlist, the heart it stays the same… with the outlined heart.

For sure there is some css from the theme or other plugins that conflicts with the wishlist. Is there a way to overwrite the css for that specific action (if I have a product in the wishlist the heart to be full grey)?

in the shop gallery (not single product/product page)
Thx