SCLogin Affecting template

I have a template by a development team called Templaza. I am also using the Hikashop component.

On the product page, a module is not showing, because according to Hikashop,

The module is right displayed and the related products are right displayed.
The issue is related to the HTML/CSS.

For an unknown reason, the product listing is display in a

And with the hidden overflow + the CSS to force the size on "auto" with a relative container.. The final size of the block is "0px" height.
So the content is there, you just don't see it.

So I asked Templaza to look into it. They said that it is because of SCLogin.

We have checked your problem. Because you are using the third party (SCLogin), it makes the module "Related Products" not be shown.

They attached the screenshot as "proof". Before I go back and work

with them, is this possible? It doesn't make sense to me, but I thought I should at least ask you.