Which version of TWRP are you trying to flash? Only the version located in the leaked build works with the KK Bootloader.
Sent from my SM-N900P using XDA Premium HD app
Main Device: Samsung Galaxy Note 3 (Sprint)
ROM: Temasek's Unofficial CM11
Kernel: Temasek V2.01
2nd Device: Nexus 10
ROM: Paranoid Android 4 beta 6