Lida

I used DasyLab 13.0 with six USB-TEMP to record temperature measured by 48 RTDs. I used two self-powered usb-hubs (5V/4A), each connecting to three USB-TEMP. The issue is that after a short while I started DasyLab, some USB-TEMP stopped recording data and the DasyLab was frozen. Even if I forcefully closed the DasyLab, I can not re-open it unless I restart my laptop. Can anyone help me troubleshoot it? Thanks a lot!