Can you in AC3-Filter's properties (I'm still using 0.70b version, but (
as the test-sample has no AC3 sound) you're probably using a recent version which can also handle mpeg layer III sound) switch off it being used for mpeg 3. Does that make a difference?
P.S.:
I noticed from the appearing of the black video-window with "Playback" (abbreviated) in it, that you have "Auto play" selected in
(rightclick >) Options > Preferences > [General].
If you start BS.Player by its executable, then first deselect "Autoplay" and then load the video-file (without pressing "Play"), you may have more time to check filters before BS.Player exits (if it exits).