Effects Usage Data Not Accurate

I am working in 2.1.2.9.0.7. I am discovering that effects usage information seems to be very inaccurate. When I view effects usage in either About Effect, About Cue (effects column), or the PDF Usage printout, it is telling me that certain effects are in use in cues where they definitely are not in use. Maybe they were in use a long time ago in that cue, but they have since been removed and the usage data is not updated. I am also seeing usage data showing effects being used on incorrect (old) channel numbers in cues.

Is there a way to manually refresh this data?

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