Failure to close properly

I switched recently from Arch Linux to Nixos, and I’m using Audacity 3.0.2 as installed automatically from my file /etc/nixos/configuration.nix. I’m on the stable channel of Nixos 21.11. The problem I’m describing began before I upgraded to 21.11 (which only became available a week or two ago, as far as I know).

Audacity works fine for any new project until I try to close the file. Every time I do that, it throws an error:

“Internal error at DBConnection.cpp line 410.
Please inform the Audacity team at

The file is never available simple to open again after that. Thankfully when I simply open Audacity it offers to recover the file and any other I haven’t already discarded, and recovery is always successful.

This is not intermittent and it doesn’t depend on what I’m working on in any way. It happens every time without exception.

Thanks for working on it.

Try using Audacity 3.1.2 AppImage. (Available here:

I experience the same problem, also on NixOS. The AppImage does not run, but does not produce any error either.

What is the full name of the AppImage?

Which version?
32-bit or 64-bit?