Invalid Argument error when searching for an existing product in French

Hi, 

We are using Dynamics CRM Online 2016 Update (8.1.0.534) and users with language set in French are getting an Invalid Argument error message when trying to search an existing product to add to a quote.

This is very strange since users with language set in English are able to see the search results and add the product to the quote. 

Please see screenshots. 

Users in French searching existing product to add to quote. Search = 24

Users in English searching existing product to add to quote. Search = 24

Has anyone already encountered such issue? Could you please advise on how to fix this?

Thanks, 

Regards.