Easing Curve Handles are intractable on tracks even if they are not visible

Easing curve handles are interactable on tracks that do not support them.

1. Create a level sequence
2. Create a second level sequence
3. Add the first sequence as a subscene of the second one
4. Move your mouse cursor to the top left corner of the subscene track
5. The cursor should appear as the double-sided arrow, and the edge of the track should be a light grey and not a yellow, if it is yellow your cursor is too low.
6. Click and drag to the right. The track should not move, but a yellow vertical line should follow the cursor.

RESULT:
An easing curve handle will be moved instead of the track. The subscene name will move, but nothing functional will happen.