In ArcScene, open the layer properties of your satellite imagery and select the "base heights" tab. Tick the radio button that corresponds to "obtain heights for layer from surface" and browse to your tin.
... View more
Solved! I was unaware that *.aux files were also associated with pyramids. The issue was solved by deleting them, in addition to the *.rrd files, and then rebuilding. Cheers!
... View more