There's been a bug in previous versions of Camtasia that isn't quite gone. I've just noticed this in 2019 for Windows. When you make edits in a clip (screen recording) using the green and red handles, the audio level now remains constant. That's great. However, when you make the same edit again on a clip that has its video and audio split into separate tracks, then make an edit, the audio level dips again for the whole timelime. Which is a shame. I was so happy to see this bug gone, looks like it's still lurking.