Difficulty with AR Camera + Separate camera rendering to render texture with mapbox

The app is a school engineering project. The idea is that there is a globe shown in AR and the user is asked to select a country. They have to click on that country to get to the next question. The part that I'm working on is there is also a map from mapbox that shows the terrain of the country as a popup. The mapbox map is rendered to a render texture and shown in a rawimage. As you can see from this picture, there is a camera that is projecting onto a rawimage, and that works fine as long as the AR camera is disabled. If I enable the AR camera, the rawimage goes blank, or mapbox refuses to load. Any way I can fix this? I tried all the settings on the projecting camera, nothing worked.