[solved] How to attach genitals (Golden Palace) to a character with geo shells?

I have this character: https://www.daz3d.com/eve-3022-hd-morph-for-genesis-8-females
This character has two geo-shells, one for the white (default) smooth skin and one for that black seam across certain parts of the body.

I would like to attach Golden Palace (https://www.renderotica.com/store/sku/57311_Golden-Palace-For-Genesis-8-Female) to it. As soon as I apply Golden Palace to the character, the new genital seems to create a hole in the characters geo-shells. I apply Golden Palace's geoshells, use material copy and shell fix, like every other time I use Golden Palace. And it works here in the sense that the genital now looks like the skin of the android character, but I need it to look like the character's geo-shells. As I said, the crotch area where the genital was applied creates a hole through the character's geoshells, showing the skin beneath... did I explain my issue well enough? Does anyone have an idea how to get the character's geo-shells to be visible on the genitals?