Sequencer frame by frame playback is blurry and distorted

When navigating through frames of a Sequence, the scenes become very blurry and distorted after the initial scrub through all of the frames.

1. Open QAGame in //UE4/Release-4.13
2. Open frameDiag.umap
3. Locate and open counterBalls level sequence
4. Select "Lock Viewport to Camera Cuts"
5. Press the "Next" button in Sequencer repeatedly until the sequence has finished
6. Navigate back through any of the frames

Results: Frames are very blurry and distorted

Expected Results: Frames are as smooth as the initial scrub through.