Lkorg wavestate midi

hi friends
i am working with 10.5 artist.
i bought a korg wavstate. vonected it to cubase via usb and audio interface
the knobs and keybord of the wave state effects other vst instrumest and contorol the wich is good for .
but the problem is that is dosnt write the automation .
i enabled the write betton .it does effect the sound but still dosnt write .
can you help fixing it so i can write