Hello

i have strange problem: i want to control the volume slider of a return track according if a device is on or off! so live.observer checks if device is on then sends 1. to an live object with the live path of the volume slider of the return track. should work right? but it doesnt. when the slider is touched manually and dragged then the volume slider moves but when it is done "automaticaly" the slider in the api patch moves but the volume slider in ableton doesnt move accordingly! is this a strange bug??

put the attached patch in front of a device in a return track and switch return track on and off to see what i mean!

thanks for help! greetings