Arduino with Ableton - cannot save

I try to build up a drumrobot,with servos an the Arduino. It works with the connectionkitm4l, but sometimes it losts the connection sometime, and I cannot save things. After restarting a saved programm with the Arduino plugin, nothing happens. I have to map everthing new (although the mappings are not lost! but they give no information to the Arduino Uno.) Can you help?

With such a vague description of what you have sorry no I can’t. I have used Ableton with an Arduino but I have no idea how you are trying to do what you describe.