A20 Usb problems

[PRuba]

Hello everyone, I am new to the world of 3D printing. I have my new printer A20 and printing from the SD card works smoothly. Now I am trying to print via USB, when giving the order to print the bed temperature is sent to the printer and goes to teh target, then that of the extruder and goes to target also, but when starting with the model the printer stays still, in Repetier_Host V2.1.6 I can see the development of the different layers, but the printer does not move. What can happen? Thank you for your help

[Admin]

Hello, it may be a software problem, you can directly print the test file below, or you can use Cura.