High Sierra AU Plugin Visual Feedback
Something I noticed as well is on my computer with High Sierra, the plugins in ScreenFlow show up and work in the web version, but the UI of the plugins don't update. Meaning, with some plugins, as you play the audio, the plugin will have visual movement and feedback based on the sound and settings of the plugin as the audio plays. This doesn't work in Screenflow 7.2 on High Sierra.
This is for all plugins, Apples, Loudmax, etc. The plugins work fine visually in other apps. I didn't have this issue with Sierra.