Windows startup sound not working over USB-C (3.5 mm works)

I recently got a new speaker, the Edifier M60, which connects to my PC using a USB-C to USB-C cable. Everything works normally, including music, games, and other Windows system sounds, but the Windows startup sound does not play.

I tested the speaker using a 3.5 mm cable, and the startup sound works normally that way, so the issue seems to only happen when using USB audio.

I also tested the same speaker over USB-C on a Windows 11 laptop, and the startup sound plays normally there.


Things I’ve already checked:

• ErP is disabled in BIOS
• “Play Windows Startup sound” is enabled
• The USB-C speaker is set as the default audio device
• Other Windows system sounds work normally
• Restarting the PC didn’t fix it
• Tried different USB ports/cables
• 3.5 mm works normally

Could this just be a USB audio initialization/timing issue during boot?