Wio Terminal disconnected from USB (Mac)

On my MacBook, when I reset twice the WIO terminal, the USB port shows up and I can download the script without problem. Then, when the WIO terminal restarts to execute the code, the USB connection is lost, preventing from using the Serial Monitor or Plotter. If I reset twice again, the USB port shows up again but the WIO terminal waits for download and does not execute the script. This problem occured on my MacBook Pro after a few scripts downloads and runs, it was not the case before when the WIO terminal was brand new. Besides, it works fine with my PC/Windows.
Please help !