In this video, you will learn about how to set true north using the localization tool in Twinmotion. I would recommend using the localization tool to set a location for your project. Doing this will set north for you. Even if your project does not have a specific location, I would recommend setting on. Also, be aware that adjusting the north offset will override the settings of the location and remove true north for that location.
https://dev.epicgames.com/community/learning/tutorials/kll4/how-to-set-true-north-twinmotion-2020