Showcontrol Midi Gateway sees only Raw Midi FF

We have a show with a Show Control Midi Gateway, and i am getting correct Midi Notes send by Ableton, this worked before on other shows but nit know, the Gateway is on a switch and can be pinged and seen in Concert, Siftware Version is, Eos 3.0.2 Build 6, we hav list with Midi Notes that Trigger the cues, in the Gateway there a Midi can be seen as n/y changes.. the Gateway is connected with USB there anything that has to changed that Midi Notes will be accepted, incoming Tab 99 only shows Raw Midi FF

thank you Hannes