Thanks so much. It’s getting a little too technical for my limited skills. I’ll pass this info on to my tech colleagues.
Yes, WPML Multilingual CMS 4.4.3 is installed.
Just to avoid wasting your time (unless you’re curious to solve it) I’ve adopted a workaround that works pretty well: instead of using Benchmark’s reference short codes to recall the forms, I’ve copied the forms’ full HTML code in the places (page, widget) where they should appear. Less clean but fully functional.
Thanks for your help Sean. I’m actually using a single instance of WP in multi-language mode. I’ve had your same idea, but wasn’t able to find a way to set a dedicated Benchmark API for each language (definitely I guess I don’t have enough technical skill to do that).