I’m currently in AU at the moment and have been having issues roaming with One NZ. Connection drops randomly several times a day on either SIM says SOS only. (have work physical sim and personal e-Sim both with One) Customer support just said to turn device off and on again. This hasn’t helped and I couldn’t get 5G either. I tried as above to manually select network and so far so good. Hopefully that works. Never had issues roaming in AU a few months ago, very odd/annoying.