IvUs

I have discovered that offline decoding does not produce valid file. Playback of decoded file shows black screen and no audio. Looks like it still scambled.
My config is OpenPLi-2.1-beta-vuduo-20120415.
CAMs: Viaccess Red CAM, DRE NKE with official cards inside. For both CAMs there is no correct offline decoding.

Can it be fixed? I can collect any logs and can make any tests if it is necessary. Each my CAM can descramble only single service at the same time. So offline decoding is highly important feature for me, there is no another way to sucessfully record channel in backgrownd while another channel of same provider watches.