AE CS6: SA Color Finesse 3 has stopped showing anything in the Full Interface...

Hello,

The SA Color Finesse 3 effect in After Effects CS6 has stopped showing anything in the Full Interface. No image, no curves, no scope. Just the basic interface. This is unusual because it was showing the image and curves and scope fine just previously. And the simplified interface still shows fine and affects the image in the composition view.

I thought it might relate to an auto update run from inside After Effects, so I uninstalled AE and reinstalled the original file to get rid of the update. But this has not corrected the problem.

Could anyone offer why this might be happening so suddenly? Has anyone else had this problem?