Open project and track structure is intact but audio replaced with silence, no error message


I’m using Audacity 2.3.0 on MacOS Mojave 10.14.1.

I was editing a project for a client and had briefly clicked into another project to copy some audio when I got a pop-up about a debug report and an endless spinning beach ball.

I had to force quit and when I reopened Audacity it gave me the option to restore the file I had been working on.

It did not restore the file properly. The work between when I had last saved a few minutes earlier and when it crashed was not there, and besides that, the structure of all the tracks was in the same position as the previous save, but the audio within the tracks was replaced with silence.

It is the exact same issue as and this is not the first time this has happened. Has been happening with earlier versions of Audacity and Mac OS X. I will open a file and without seeing any error messages whatsoever, there are pieces of audio that should be there that are instead silence.

When I open the .aup file in TextEdit, it shows all the tracks and all the hundreds of references to .au files. The hundreds of .au files are also still present in the _data folder.

I have tried a python and .sh recovery tool from the manual/forum but neither has been able to make the audio re-appear in the position it is supposed to be in.

All of the structure and all of the audio data is still there but somehow the audio is not showing up properly when opening from the .aup file.

Is there some way I can get this data back in its proper place without having to redo hours and hours of work, especially since it all appears to be still there?

Thanks in advance.