Why does the Predator CNC Editor say it is still sending even though the transfer has completed?

If you are using the CNC Editor to transmit a CNC program, and the control receives the complete file, but Predator is still trying to send, check the end of the CNC program to make sure there are no spaces or other invisible characters after the % sign. Predator CNC Editor stops sending the program when it detects that the last character of the program is a % sign.