I tried today to jog the motors again with no success.
Then decided to delete the XML file and start from scratch. Now it worked but I discovered along the way that my problem was with the dip switches which are setting the motor steps. Although I have 8 possible combinations to set, the motors respond only when the setting is at “Full Step (Mode 8 Fixed)”.
The other combinations are: Full Step (Mode F Fixed), Half Step, Half Step (Mode F Fixed), Quarter Step, Eighth Step, Sixteenth Step, and Sleep.
I asked the manufacturer about it and waiting for an answer