Hello everyone. I have a problem. I have a Hyundai VX400 three-axis CNC milling machine. Even though there are no programs on the machine's memory, more than half of the machine's memory is full, and I can only transfer one or two programs onto the memory. The programs in the 9000 series have also been deleted. Can anyone guide me on how to resolve this issue? The control is Fanuc Oi-MC.