D838 Not Getting 4G/LTE topic

My D838 is currently on D83820c-TWN
I am getting 4G/LTE on other phones when I move my simcard.
I have tried different ROMS but still cannot get 4G/LTE
Tried to edit my buildprop before and it caused a bootloop.
Help would be greatly appreciated.
Thank you.

Screenshots:

When I try to open the service menu:


When I try LTE only in RAT Selection:


In Preferred network mode settings: