Hello,
I have the same issue. I have checked the USB device sleep setting and they are set to never enter the sleep mode (as well as all the USB connector/hub). I have no en ergy power stting set on on.
Would it be possible to investigate a bit further as this only happens with Inibuild planes (The 330, the 320/321 and the 350). With other addon (PMDG, FSLab, Feniw, this does not happen
Thank you