For Stephen:
Could you create a Patch Post for this and copy and paste your problem. Afterwards you could delete your post from Lytz conversation.
I will do the same, this way we can archive the issue better, and clean up Lytz's post.
The problem is most likely that the Groove Sequencer does not produce a Note Off Message.
I can reproduce with Battery and the assumption is that battery is overloading it. It looks like the CPU rises over time...and can over-cpu.
Battery probably is just not handling the Note On Only....
In this case sometimes you get really stuck at high CPU, you can do a MIDI Panic and get to clear out and run better again.
I'd suggest just create a patch after the Sequencer. Add a MIDI Transformer, patch MIDI in and MIDI out. Then put a knob on the Length.
This will produce a MIDI Off corresponding to the MIDI In received at the gate length specified.
This so far looks to fix the problem.
I've used Battery quite a bit over the last year and have not any issues, same goes with the Groove Sequencer....however I have used the internal Drum Banks more or Polyplex with this.
I'm testing it out right now for you. So far it looks to be stable...I will update here in a while after I give it some time.
So far on my end it looks good. Around 18-21 percent on a single thread, single track with another blank audio track and a few other misc devices open.
It will fluctuate about 3-4% at least from what it looks like.
Also be careful, I believe you can overload battery quite easy with really short gate times, so I'd suggest not going too low, maybe changing your minimum range so you limit yourself.
If you need more help let me know, that's what I am here for too
-S