Hello Balazs!
It was notice that sometimes after the end of the axis homing , slave axis was unslaved.
We try to jog gantry (X and slave A) after homing, but move only X axis.
If we try to repeat homing procedure X and A axis make homing correctly. But after then A axis not moves, only X.
The problem goes away after then UCCNC restart.
May be there are any conditions when slave axis can be unslaved?
We use for homing button #113, UCCNC version 1.2044, UC300ETH-5LPT controller.