Rescanning plug-ins (Windows & macOS)
Please be sure Ableton has activated the button for "Use VST Plug-in System Folder" and "Use VST Plug-in Custom Folder" if you have one.
Then hold down the ALT key and click RESCAN (Preferences - File Folder - And Hit "Rescan" by pressing also the ALT key while clicking).
Why my bounced files are muted?
Check if the input monitoring is deactivated on your audio tracks that are using Neural DSP plug-ins in their slots.
If the input monitoring is enabled, your bounced files will be muted after the render.