No sounds available for TriggerSound 2.6.1 through latest

When trying to create a trigger with sound on Linux I have no option to test it:

This applies to every single sound available from the list.

When still creating the trigger and testing it: the sound does not occur when the pattern appears in the corresponding session.

This does not happen on Windows 11.

Tested it on 2.6.1 and the latest version.

Using OS: Fedora Linux 41 (Workstation Edition)

Reproduce the missing sound list and trigger playback on Fedora Linux 41, comparing the behavior with Windows 11 and the versions reported. Trace the sound-trigger path from the trigger creation and test actions; done means every listed sound can be tested and plays when its pattern appears in the corresponding session.

Written by the indexing model from the issue text.