Duo S eMMC flashing on Windows - USB write failed

I’m trying to flash the Duo S on Windows 11 using the instructions in the docs. The program can see the device, but the write fails as follows. Any suggestions on what needs to be corrected?

> .\usb_dl.exe -s linux -c cv181x -i .\rom
[INFO] Using libusb v1.0.26.11724
[INFO] Waiting for USB device connection: —
[INFO] found usb device vid=0x3346 pid=0x1000
[INFO] USB download start…

[INFO] Waiting for USB device connection:
[INFO] found usb device vid=0x3346 pid=0x1000
[ERR] usb write failed: LIBUSB_ERROR_PIPE(-9)
[ERR] send file failed
[ERR] USB download failed