Trouble with USB interface and feed back module

Hi!

I bought a DCC USB module and a feedback module sensors two years ago. The USB interface works without problem with JMRI, but two weeks ago I tested for the very first time on a JMRI tab (no use module before) , the feedback module sensors and i've got the following problem: As soon as I commut an entry on the feedback module, I get the whole capacity of sensors on the tab (16*8 lines) with an erratic display. on/off appears blinking at different location on the tab.

Do you have any idea about that? , Did you already meet this problem?

Thank you for your help

Regards