FlexiContent + Engage Box issue

Hello!
I have FlexiContent module, that work correct in standard module position.
I mean links from this modules works fine.
I use Engage Box extension to display this module in popup window when user press download button.
So, when module displays in popup window, impossible to open any link from module.
Only text displays [object Object] instead opening FC item.

I created ticket on Engage Box developers site.
This is their answer:

The [object Object] error is an issue in the FlexiContent module implementation which it seems doesn't support being loaded asynchronously. It's something you can figure out with the FlexiContent support only.

and one more answer

Indeed works perfectly when it's used as a standard module but this is not enough. In order for a Javascript-based module to work properly with EngageBox, it should be coded in such a way to support asynchronous loading.

So, how we can fix it?
Thanks.

Hello

you may assign the module to a hidden menu item

and give me access to website and the module ID
plus the frontend URL that has module assigned and i will review it
and will look at it on Monday

Module already assigned to all menu items.
Ok, I will provide access details at Monday.
Thanks.

Detected (thanks to Georgios) that Engagebox does not work when fancybox is loaded on the page.

got the same issue ( astroid + fc + pbck)
how can i desable fancybox in flexi ?

found it, it was un image field