To import a tracked camera into Unreal Engine, export your camera solve from software like Blender, Maya, or After Effects as an FBX file with camera animation baked, then in Unreal use File > Import Into Level and enable camera/animation import settings. Match frame rate, focal length, sensor size, and coordinate system (often Z-up/Y-up adjustments) to avoid misalignment, then verify scale and timing in Sequencer for accurate motion tracking.