I'm trying to set a custom envelope for a sound in Flash CS5. I can bring up the envelope editor fine. But, I find that all the control points are after the end of the sound itself. If I click on the waveform to create a new control point, the point momentarily appears where I click it, then automatically jumps to the end of the waveform. If I try and drag any of the control points from after the waveform to during it, they just automatically pop to the end of the waveform.
Strange. After I wrote the previous post, Flash crashed. And now after starting it up again, the Custom Envelopes are working properly.