Cannot play Oberheim Matrix properly in FL Studio [SOLVED] with the update

[Oscurio]

Hi,
     
I use Fl Studio and I have a serious problem with the Oberheim Matrix.

I cannot play the Oberheim Matrix emulation. When I want to play the synth with my midi controller It does not respond and when I try to play it with the virtual piano of the channel setting (where you load the vsts) of FL Studio either. It only works with the keyboard of the plugin. Even though  I can play it with this way from time to time some of the keys remain pressed.

My DAW is up to date - FL Studio
Oberheim Matrix up to date.
OS windows 7


Thanks in advance

Oscurio.