MPC's dirac filter

[Doom9]

Can it be properly disabled? I have a new dirac build splitter installed and have a raw stream to be played. It plays just fine in Graphedit and other DirectShow based players, but playing in MPC is a nogo.. it renders the file, but never plays, just stays there with a black frame at the size the video should be, so I suppose it's using its built-in splitter regardless of the fact that I actually disabled that splitter and even set an override to make sure the new filters are being used.

Any ideas?