For what it's worth, I had a Zo breadmaker from the 20th century that had the same problem, cemented in paddle. I just gave up and lived with it. Eventually the motor started squealing (10+ years old) and I retired the thing.
I remember @andiesenji said she would remove the paddle after the kneading process and before the rise/bake process to eliminate the paddle getting cooked in on her unit.
Gravity may work.