I've got this weird problem at the moment trying to sort out. I am using a Nektar LX61 midi controller with various VST's including presence. It doesn't seem to matter what VST I use.
Everything is going as normal, I am recording piano parts etc, after about 30-60 minutes, I suddenly notice the latency has got longer, notes are taking longer to hear when I press the keys. I think that can't be right but when I close and restart Studio One, the latency is ok again.
Sure enough, after a certain amount of time, it starts happening again and I have to shutdown and restart Studio One. Anyone heard of this before? I have checked what I can and everything seems to be normal.