Roller table infeed does not work once system is added.

I have formed a roller table in feed system as per a video tutorial. This works fine. I add a second roller table system to in feed two components, again this worked fine until I added a system

Once system is added the source component forms on one in feed system, but not the other. The linear movers do not seem to work, (speeds set at 500mm/sec). I have tried activating with Smart component signal and with system signal activated from Rapid code. Neither seems to work. Can anyone advise on what I am missing? [ABB RS 6.04.01 used]. Many thanks.