1.00 Firmware — Bu40n

: Unlike some MK (MakeMKV) specific firmwares, the 1.00 DE firmware often works better with a wider range of third-party software beyond just MakeMKV.

This indicates a mismatch between the SVC code and the firmware. You likely have an NS60 drive or a newer encrypted model. You will need to flash "friendly" firmware like BU40N 1.03-MK instead of stock 1.00. bu40n 1.00 firmware