Step 1 - reset Audacity’s settings using the instructions here: https://forum.audacityteam.org/t/resetting-audacity/50613/1
Then open the project and try to do some editing.
If that doesn’t work we can assume there is a problem with the project itself.
Step 2
Open the project, but don’t try to do any editing.
(We’re going to export each track as an AIFF, then import those files into a new project)
Do File > Export > Export Multiple
- choose a place to save the files
- set Format to AIFF
- Set “Split files based on:” to “Tracks”
- If your tracks do not have unique names, set “Name files:” to “Numbering before Label/Track name”
- click “Export”
When the export is finished, close the project, make a New project, then import the files into the new project.
– Bill