Can not set specified USB speaker as default sink since pipewire 1.0.5

• PipeWire version (pipewire --version): Compiled with libpipewire 1.2.1
• Distribution and distribution version (PRETTY_NAME from /etc/os-release): Arch Linux/EndeavourOS
• Desktop Environment: KDE Plasma 6
• Kernel version (uname -r): 6.9.10-arch1-1

Description of Problem:

I can not set my USB speaker (a Redmi 电脑音响, "电脑音响" means "PC Speaker") as default sink.

The pactl set-default-sink does not work; it does nothing if I select the specified Speaker. But it works fine with other speakers, such as HDMI or 3.5mm speakers.

Additionally, both wpctl set-default and KDE audio stings also do not work.

However, the rest of pipewire functions as expected, I can move the stream to that device using pactl move-sink-input and KDE audio settings.

How Reproducible:

I was able to reproduce this issue on my PC with freshly installed system. Downgrading the pipewire-audio package to 1.0.4 resolves the problem.

Steps to Reproduce:

1. Boot the system with a live cd comes with pipewire 1.0.4+ installed. I used EndeavourOS_Endeavour-2024.06.25.iso in my test.
2. Switch default audio sink to "Redmi 电脑音响" using KDE audio settings.
3. Switch default audio sink to "Redmi 电脑音响" using cli.

Actual Results:

Usually, nothing happened. However, if there are more than two speaker available, Pipewire will occasionally set another speaker as default output sink.

Expected Results:

Default speaker switch to specified.

Additional Info (as attachments):

• pw-dump > pw-dump.log: a pw-dump without this issue that install pipewire 1.2.1 but with pipewire-audio 1:1.0.4-4 package. pw-dump.log.