WordPress feed not the same

Hello everyone.

I’m working in a project that we have a multisite for 3 languages of the same site but with different content.

Here are the URLS:
http://www.bwob.ca
http://affairessansfrontieres.bwob.ca
http://www.businesswithoutborders.com

My problem I dunno if this is a problem… or how to work with this.
Each site works properly no problem at all with them or multisite. But what im having issues is that the feed for each of it show in a different way, and all of them have the same configuration and everything the same.

But bwob show only short texts, affairessansfrontieres show pictures and long texts and businesswithoutborders shows long texts but no pictures.

Is there a way to configure how my feed output is going to be? So I can make all of them the same way?

thanks,
Thiago Cruz