I can't reproduce this. Seems to be working fine on my end. Do other effects work OK?
Thanks for taking the time to help...here's the weird thing, after further testing it seems just to be within this 'project'. At first I was suspicious that it was a particular type of clip. The piece I'm editing was shot with 6 different cameras and format's, but it seems to be universal through all of the clips. However, I can open these same clips in a new project and use the 3-way tonal range output.
But, to answer your question, all the other effects seem to work fine in the original project. I have had the project 'shut down' a couple of times and restart with new versions. Is there a way I can check the integrity of the project and 'clean it up' if necessary. What are your thoughts?
Sounds like something just got wonky with that one project. It happens.
Maybe try importing the sequences into a new project. You may get lucky and keep all your work without bringing over whatever went wrong.