Latency when using VST

[MrFigg]

I just bought and installed Samplesons Mellox Pro melodica VST. Great sounds but I'm experiencing a slight problem with it. I'm using it in Reason 12 with a Nektar Panorama T4 MIDI Keyboard. When I press the keys on the VST GUI using my mouse I get an instantaneous response. When I write notes into the sequencer however I get a slight delay before the sound is heard on each note. Same as if I play the notes in on my MIDI controller. I have tried various settings on the VST and have reduced my buffer size to 64 samples (the lowest it can go). I have never experienced this issue with any plugins in the past. As I said, even when I write the notes directly into the sequencer I am still getting a short lag on the sounds. If I move all the nots back 1/32 of a bar they hit as they should. There is no way to change the attack on the VST itself. Have also tried turning off delay compensation to no avail. Anyone got any ideas?

[ProfessaKaos]

Do you still have Reason 11 installed? If so try it in Reason 11 and see if you get the same results. Reason 12 has been very buggy for me, so maybe it is a Reason 12 issue, but maybe not.