I've made a post which contains :
[mla_gallery tag="Logo-candidat" size="medium" orderby="title" link="file"]
I was reported that my post features no image at all, while actually the gallery displays on my screen 11 images !
Well, I could see thet if I disconnect from wordpress, they're right : I see no image at all. Nothing related to any gallery in the HTML source either. Very strange !
PM me if you need a sample URL.