Cant get to isntall eOS on my Oneplus 6

Fix Failed to Boot into Userspace Fastboot, One or more fastboot_ error_ failed to identify current slot If you read the source code, it is way BSP designed to get into download fastboot mode It is designed by BSP, if it could not read the correct fastboot getvar currentslot When there is a problem with the SATA Port, BIOS may fail to detect the SSD 2 slot but does not support NVMe, is it due to hardware or

fastboot get active slot If I ignored the error and tried to flash twrp , I'd either get the Failed to identify current slot error listed above or the flash command