Nav 2013 report layout and multilingual labels

Hello !

I'm encountering a small problem when I print a report (a sales invoice for example) containing what Visual Studio calls parameters (either Labels or captions coming from the Include Caption option).
Although the CaptionML property has values for FRA and ENU those fields are always printed in French if Nav RTC client language is French, regardless of the language code in Sales Header.

Is there a way to make ML work for parameters as it works for caption fields included in the dataset ?