It's a macbook I run in clamshell mode. I recently paired some airpods with another Macbook in the vicinity. It might've synced to that device, but I never changed the audio output of the device running on Factorio.

I'm not able to reproduce reliably

I was AFK'd in the game (I believe viewing a ship), and saw a message to file a bug.

```
354234.195 Info AppManager.cpp:304: Saving finished
354369.136 Time travel logging:
197526.366 Popped blueprint record (player-index: 0, ID: 4555) from book (player-index: 0, ID: 4544)
354369.136 Error ...