Sully RDM not working

Hello guys,

We recently bought some Robert Juliat Sully LED compartment

 https://www.ecm-sa.ch/fr/page-produits-en-detail/robert-juliat-sully/sully-led-compartment-accessory-t650sx.html

I'm new to EOS system, I use the "ION XE", when I open Net3 concert I do find the Sully named as " 115W Led Profile " but I can't do anything with it, there is a little yellow symbol.

I've tried different ways to plug it, with or without a RDM splitter, no others fixtures, doesn't change a thing.

The RDM do work with others fixtures...

What can I try to make it work ? I'm just trying to change its address easily, since there is no touchscreen or anything to do that... 

Also the application randomly crash without any warnings ...