One of my HDD is almost full so I decided to move my Cubase projects folder to another HDD. After that all my old projects have the same problem: all audio tracks are silent. Although it’s in a pool with right new folders. And I can even hear it when I open it as a wave in Cubase.
What can be wrong with it? Now I have to make new projects and copy everything inside from old project
The Audio Events in your Project are most likely looking for their Audio Files back in the old location instead of the Audio Files shown in your Pool. This is typically caused by using your computer’s OS to move the Project Folder to a new Location.
The correct way to move a Project to a new location is to use the confusingly named File>Backup Project…
I’m not at Cubase to check. I wonder if you can edit the paths of the Audio Events in your Project? I’d expect not, but worth taking a peek just in case.
The simplest & probably the cleanest would be to
Duplicate the Tracks
Delete the Audio on the copies and replace with their equivalents from the functioning Audio in the Pool
Disable the original broken versions of the Tracks (but I’d keep them around until I was sure they weren’t needed).