program stops receiving USB input data

[yindengxie]

Hello Jan!

I have four HID USB ports to input data, and the program is attached as follows.

If I do not slide the potentiometer or do not turn the switches on and off often,
after a while, my program stops receiving USB input data. If I continuously slide
the potentiometer or turn the switches on and off, my program can normally receives
the input data from USB port.

Please help me, what is my program problem?

Thank you very much for your support