iPad Logic Pro frequent stuck notes with FF Twin 3

  • Using FabFilter’s Twin 3 VST/AU synth in Logic for iPad
  • Affects all versions of Logic for iPad including 2.2
  • no external hardware connected, just an iPad M4 pro by itself
  • never happens in the desktop version of Logic Pro and Twin 3
  • doesnt happen with 1st party VST/AU synths


While playing back a track with Twin 3 instruments playing, I will click on the timeline to move the playhead to a different position without stopping playback first. Result: one or more Twin 3 instruments may playback a stuck note until I exit the project. I believe if I move the playhead before a long midi note ends, that note will get stuck, and/or there’s a race condition somewhere. It’s not consistent.


Unsuccessful remediations:

  • pressing stop (note stops but starts again on playback)
  • pressing stop twice (note stops but starts again on playback)
  • playing the stuck note manually in the VST/AU or USB midi controller
  • playing back midi regions for that instrument
  • Turning the VST/AU off and on
  • Muting and unmuting track
  • Disabling and enabling track regions


Successful remediations:

  • exiting the project entirely


What I need:

  • an “all notes off” or “panic” button as a failsafe that applies to 1st and 3rd party VST/AU
  • or, a software fix to prevent this from happening in the first place


What I don’t need:

  • freezing tracks. This works but not when I’m actively editing midi and playing back, which is where this issue happens most. Freezing and unfreezing repeatedly is also very slow.
  • Loop regions. This works in limited cases, but adds restriction and friction in workflow overall. And notes may still get stuck and require exiting the project.



I have been waiting for a fix for this since I first bought Twin 3 and Logic Pro for iPad. I’m trying to move production over to iPad but this issue makes it intolerable.

iPad Pro, iPadOS 18

Posted on Jun 25, 2025 02:26 PM

Reply
2 replies

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

iPad Logic Pro frequent stuck notes with FF Twin 3

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.