I have been using the white balance correcting facility of the Color Corrector 3-way without any problem for years. Suddenly its stopped working and I have no idea why! I have tried trashing the preferences, different clips, different projects but to no avail. To recap what I'm doing:
1) Apply the Color Corrector 3-way to the clip in the timeline
2) Select 'Select Auto-balance color' in 'Whites'
3) Go over to the Canvas and click on a white area of the frame, and...
Has anyone else experienced this? Any solutions? This is very frustrating as it is a useful tool which I have used hundreds of times before.