MIDI note on/off swapped

[sockmonkey]

We are aware of it and working hard to figure it out

We have concluded that it is not USB specific, but the additional processor load causes the bug to be triggered more often. We think we've found a good test scenario and are trying to figure it out. It's one of those bugs where there simply isn't an easy way to track it down until you see it in person. Now that we hit that stage hopefully we'll nail it soon

Fantastic news, thanks for letting us know.

[beekn]

This problem is still there in the latest version of the Take 5. its infuriating. $1500 keyboard and its useless as a midi controller

[dthree]

This still happens in 12.0.4

[Magnanimus]

I get this all the time with Prophet 10.  Inversion of note on and off, which can be seen in midi monitor.
Happens randomly, but sometimes every few minutes or so, which is infuriating.

No other midi devices involved or activity.  Turning on/off resolves the issue temporarily. 

Is this a known issue?

[qwatkins]

Has this issue regarding inverted midi on/off note messages been fixed? I get it constantly with my Pro-3.  A power cycle fixes it but only for a short time. 

I get this all the time with Prophet 10.  Inversion of note on and off, which can be seen in midi monitor.
Happens randomly, but sometimes every few minutes or so, which is infuriating.

No other midi devices involved or activity.  Turning on/off resolves the issue temporarily. 

Is this a known issue?

[bvanderlugt]

No, it hasn't been fixed. Such a bummer, wish we could get some info on if it will ever be sorted out.

[dthree]

Still happening to me with 12.0.7. Happened twice today.

[dthree]

Bumping this as it still happens far too frequently.

[FedeB]

Problem still happening in 2025.

In short, it is only when using midi over USB.
PRO 3 with local control off and used as a controller for Logic connected to a Mac Mini M2 Pro, Sonoma 14.4.1.

Initially, everything is fine. At some point, while playing, the data sent out from the Pro 3 usb gets note-on and note-off swapped and stays like that (the swapped data is visible on Logic's midi monitor).
Unplugging the usb cable and plugging it back again immediately solves the problem, no need to quit and relaunch Logic or power-cycle the Pro 3.

This happens fairly regularly, at least once a day, but not straight away so it is hard to reproduce.
I need to do more testing but I have a feeling it may be triggered by having a mix of aftertouch being sent out while pressing a bunch of keys.

[qwatkins]

This midi on/off swtiching is still happening for me too, it's got in the way of me using this synth since I bought it.  Very annoying to have to turn this on and off so frequently.  It seems like this has been known bug for 5 years--is it ever going to be addressed?  If not, is there a way to use this that doesn't cause this problem?

[purplegain]

One more request to finally provide a fix for this.

I'll have to make my live synth setup way more complicated than it needs to be since this synth is unusable in a reliable way via USB-Midi. What if that happens live? Re-Plug USB mid song while sequences are running?

[W07]

I've not had this problem before (but i was rarely using the pro3 as a midi controller) Yesterday i was using the Pro3 as a controller with a laptop on location, and this bug happened almost every 20 minutes? Seriously sequential, 6 years and this still hasn't been fixed??