Screensaver won't mute

[XyloSesame]

I'd like to use the screensaver function of MaLa, but have all sounds muted. The video playback is fine, but when I checkmark "Disable Sound of Videos," the audio still plays during screensaver mode. The relevant sections of the ini and log are below (truncated). Any suggestions?

mala.ini:
[Screensaver]
Active=1
Interval=150000
DisplayInterval=10000
RandomDisplay=1
PluginEventOnly=0
UseGamelist=0
UseEmulator=0
SearchInSubfolders=0
UsePictures=0
DisableVideoSound=1
UseWatermarkImage=0
StretchToFullscreen=1
Snaps=
Videos=<<REMOVED>>

MaLa-log.log (debug):
2015/03/31  12:15:42.15   Info: timScreensaverTimer: Starting screensaver
2015/03/31  12:15:42.15   Debug **: TfrmMain.timScreensaverTimer: Pause Video1 Player
2015/03/31  12:15:42.15   Debug **: TfrmMain.timScreensaverTimer: Pause Video2 Player
2015/03/31  12:15:42.15   Debug **: Sound Trigger (if set) SOUND_ATTRACTMODE ---------------------------------------------------
2015/03/31  12:15:42.15   Debug **: timScreensaverTimer: Using path for files set in config
2015/03/31  12:15:42.15   Info: TfrmScreensaver.FormShow:
2015/03/31  12:15:42.15   Info: TfrmScreensaver.FormShow: Stretch Video
2015/03/31  12:15:42.15   Info: TfrmScreensaver.FormShow: Not Startup Video
2015/03/31  12:15:42.15   Debug **: TfrmScreensaver.FormShow: Audio NOT Muted
2015/03/31  12:15:42.15   Info: TfrmScreensaver.CollectFiles: Collecting files from <<REMOVED>>
<<REMOVED>>
2015/03/31  12:15:43.04   Info: TfrmScreensaver.FindFileComplete: Number of files found= 3106
2015/03/31  12:15:43.04   Info: TfrmScreensaver.FindFileComplete: Finished file search
<<REMOVED>>
2015/03/31  12:15:43.07   Info: TfrmScreensaver.FormShow: 1
2015/03/31  12:15:43.07   Info: TfrmScreensaver.FormShow: 2
2015/03/31  12:15:43.07   Info: TfrmScreensaver.FormShow: 3
2015/03/31  12:15:43.07   Info: TfrmScreensaver.timDisplayTimer: Random Video choosen # 1559 of 3106
2015/03/31  12:15:43.07   Info: TfrmScreensaver.Display:
2015/03/31  12:15:43.07   Info: TfrmScreensaver.Display: Playing video: <<REMOVED>>
2015/03/31  12:15:43.92   Info: TfrmScreensaver.Display: PlugIn: Video file name sent
2015/03/31  12:15:43.93   Debug **: TfrmScreensaver.FormShow: Audio VOlume is = 23580
2015/03/31  12:15:43.93   Debug **: TfrmScreensaver.FormShow: Audio NOT Muted
2015/03/31  12:15:43.93   Info: TfrmScreensaver.FormShow: 4
2015/03/31  12:15:43.93   Info: TfrmScreensaver.FormShow: End Of Function