While working on a project, I was adding Affine effects to the timeline. It was going well, then I noticed the Effect Stack no longer showed the Affine user interface. 
Even the previous Affines that were properly working and saved no longer respond.
I have restarted both the program and computer and have attempted to revert to a previous saved state, but do not see anything working.
I have also tried adding new Affine transitions, but they still do not show the UI when highlighted.

Thank you, I hope this can help others as well.

Reproducible: Always

Steps to Reproduce:
1. I open Kdenlive, loading my project witch is in progress.
2. Clicking on any Affine effect
3. There is nothing in the Effect List, also the check box cannot be checked

Actual Results:  
I am unable to change the Affine effect.

Expected Results:  
I should see the UI for the Affine effect in order to build my effect.

All of my tracks are unlocked, I have reverted about six times with no change.

I believe this to be Grave, as I am unable to proceed with my task.