XQD card readers have many issues.
I think it has to do with the USB software that is used.
I have had windows systems crash, downloaded files get corrupted, and sevaeral other issues.
Its even a bigger problem if you use a USB hub.
I use Ditectory OPUS for such workflow.
https://www.gpsoft.com.au/
The problem for me resides in the USB driver that is installed by windows.