The WeighBasketsScreen.qml file is incorrectly calling soundPlayer.play_sound. The PyQtSlot is defined as playSound in the common.SoundPlayer file. The actual python method is called play_sound, which I think is where the confusion comes from. Other sounds use their own python wrapper (see FishSampling.playSound and ProcessCatch.playSound) which allows QML to pass only the single string arg. SoundPlayer.playSound needs all three, sound_name, priority, and override.
The WeighBasketsScreen.qml file is incorrectly calling soundPlayer.play_sound. The PyQtSlot is defined as playSound in the common.SoundPlayer file. The actual python method is called play_sound, which I think is where the confusion comes from. Other sounds use their own python wrapper (see FishSampling.playSound and ProcessCatch.playSound) which allows QML to pass only the single string arg. SoundPlayer.playSound needs all three, sound_name, priority, and override.