Interactive Brokers Trader Workstation "Audio Playback is not supported for your system"

Hello I am trying to use Interactive Brokers Trader Workstation for Linux and when I place a trade or do something that is supposed to give an audio alert, I get a popup saying “Audio Playback is not supported for your system.” I’m pretty sure I have all of the necessary codecs installed and I can play all of the .mp3 files in “~/Jts/hhldahnlnbpolihackkoigjidgdlenmlompohddl/sounds/en” when I double click on them, so I’m not sure what the deal is.