Sliders problem

sliders
Trying to create app with two sliders and send their value over bluetooth. Sliders may be "locked" or "unlocked". Locked (=logical true) means that when I move one slider the other slider will move to the same thumbposition.
Attached file is the implementation. The app get stuck when I define sliders as locked (running well when they are unlocked)
any suggestios?
Thanks

Try

Sorry but cannot find the "and" used in this suggesion

only have those logic functions:
image

Right mouse click:
grafik

Thanks!!!!!!!