Some terrain textures turn black when loading the scene additively

I have a terrain in one of my scenes. I load that scene additively, but when I do, some of the textures on the terrain turn completely black - This only seems to happen in the build, not in the editor. However, if I move the terrain to the main scene, everything looks fine. Is there a fix for this? Otherwise, loading scenes additively becomes kind of useless for obvious reasons, which would be a shame since I’m working with large levels.

After doing some testing, I found a workaround. It turns out that the problem arises if the terrain is disabled in the hierarchy when the scene is loaded. However, if I leave the terrain enabled in the scene so that it’s not disabled, everything works fine, and there are no black textures. I can then disable the terrain once the scene is loaded, and it still works when I enable it again later. Since the terrain really shouldn’t be active when the scene is loaded additively—it’s a large level, so I only want the parts needed based on the player’s position to be active—this is a workaround. However, it really makes no sense that the terrain needs to be active in the hierarchy for the textures not to fail. If anyone knows why this happens and has an actual fix, it would be appreciated.