This issue has been closed as 'Won't Fix' due to an extended period of time without updates. If this issue is important to you please let us know by posting on the AnswerHub or UDN, and Epic will re-open the ticket for further review.
In an orthographic view, dragging the marquee tool to select a group of objects will often result in other objects being selected outside the selection area.
1. Open the editor and switch main 3D viewport to orthographic view.
2. Add a couple of volume or props into the viewport, about center
3. Add a camera into the viewport and position it about top center between the other two volumes or cubes.
4. Drag the marquee tool to select the volumes or cubes but do not include the camera above in the selection.
RESULT: the the camera becomes highlighted and selected despite not being in the selection field of the marquee tool
EXPECTED: the camera to neither to be selected nor highlighted
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