clear attributes option fails

[mikecox_]

 I want to clear this clip of all appled effects, but the option to clear them never works.

[Ann Bens · Accepted solution]

You need to select Time Remapping not Opacity

[mikecox_]

Thanks! That worked, but it's not very intuitive.

Why wouldn't the option be greyed out; or, at least, return an error message to let me know I'm barking up the wrong tree?

[Ann Bens]

Its not a Opacity line but rather Speed.