the last few versions introduced a feature where the pallet frame was adjusted when you put things on it.
This was very helpful so it looks good when stacking full pallets but now when you tke things from the pallet the frame stays bigger than it used to, so when you stack empty pallets again they seem to float in the air.
I have made a simple model with a correction in the exit trigger of the separator, but this would be better if it was inside the pallet trigger or somewhere where its done automatically.