Hello Forum,
Complete newb here, both to SU and the forum. Just finishing my first successful model and am using a variety of 2d face-me trees and shrubs to complete the landscape. For some reason, some (not all) of the face-me shrubs don't 'act' properly. For example, when orbiting the viewpoint, some shrubs placed BEHIND other shrubs will 'jump out' in front of the shrubs they're behind, making the plant bed look ridiculous and unrealistic. They're all 'facing' the camera properly, and I've checked their origin and axis-orientation so that they're rotating about their centers correctly. Despite this, they don't seem to respect each other's horizontal placement. Any help on what might be the problem/solution would be GREATLY appreciated.

Thanks!