Ok you found a bug in the very 1st run when there is no config to read and the user call the sound options dialog before loading any game. In this case the sample rate is initialized to 11 Khz and it's a bug. There will be a workaround for this in next version, just force an early soundcard init when there is no sample rate to be sure to be able to ask the preferred sample rate to the device. Meanwhile next time you are doing a test without any config file, just avoid to call the sound options dialog before loading any game.
By the way this bug is here since Dec 27th 2021, so it's not new, but you had to call this specific dialog before loading any game and at the same time not having any config file to see it.