NeroCOM: finalization problem with simultaneous writing

Problem with NeroSDK 1.05 and NeroBurningROM
With NeroCOM I writing two CD-RW simultaneously on two drives from two same my processes successfully. I don’t want finalize discs and call BurnIsoAudioCD() with NERO_BURN_FLAG_CLOSE_SESSION flag. But sometime one of the two CD-RW discs is finalized! It’s happened with simultaneous writing only. Sequently writing is perfect.
It’s tested on two different machines with different drives.