App crashed while using multi-output

[Andrewzhang00GH]

Describe your issue

I was using my headphone, QC Ultra.
And I selected multi-output of my player app, both qc ultra and MacBook Pro speaker, found a significant unstable sound output with my headphone.
Then I tried to restart my headphone.
The moment my headphones disconnected from my MacBook, the app crashed
I'd love to share the debug log to help, but don't know how.

Steps to reproduce

1. bluetooth headphone connected (mine is qc ultra)
2. open multi-output feature
3. select both qc ultra and MacBook Pro speaker (found serious problems as above)
4. shut down my headphone and the app crashed

What was the expected result?

Work properly

Put here any screenshots or videos (optional)

No response

Platform

macOS

Application version

BetterAudio 26.5.2 (13)

Operating system (name + version)

26.3 (25D125)

[rokartur]

Was this error present on version 26.5.1?

[rokartur]

And could you give me the content of the whole crash as a file or text?

[Andrewzhang00GH]

Was this error present on version 26.5.1?

I'm a new user and 26.5.2 is the first version I'm using, might try to download the previous release later on.

[Andrewzhang00GH]

And the multi-output I referred to is this one.

And could you give me the content of the whole crash as a file or text?

I did tried to reproduce it but failed. I'll give you more info after I found a pattern to reproduce it.
But there are one I'm quiet sure. If you change the output device here in the Per-app Volume page( is it called re-routing?), there will be a tune change after a few second. Maybe there are some problems there.