FastKoko audio out file not saved under right name

[RBEmerson970]

This is an old issue, but I can't find where it was discussed. The problem is an audio out file is shown in the Save dialog with one name, but actually saved under another name. This problem has existed for at least the past 3+ months.

Here's what FastKoko thinks is the file name:

This is how it's saved under Win 11:

[RBEmerson970]

Also present in a fresh build of V0.2.4.