Can't figure out how to root SG-M928T - Tmobiie

Using SM-G928T.

Booting into the phone with no issues, just no root.

Flash TWRP via odin
Reboot into recovery
Flash kernel
Flash SU via recovery

No root verified by root checker app on the store.

I do have the recovery accessible, like I can go to it by shutting the phone down then holding UP+Power+Home.