# Scaler randomly changing pitch

**URL:** <https://forum.scalermusic.com/t/scaler-randomly-changing-pitch/13004>\
**Category:** Scaler 2 Support\
**Created:** [February 9, 2023, 11:08pm UTC](https://forum.scalermusic.com/t/scaler-randomly-changing-pitch/13004 "2023-02-09T23:08:27Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![StewartPab](https://avatars.discourse-cdn.com/v4/letter/s/a6a055/32.png) [@StewartPab](https://forum.scalermusic.com/u/StewartPab)\
**Post date:** [February 9, 2023, 11:08pm UTC](https://forum.scalermusic.com/t/scaler-randomly-changing-pitch/13004/1 "2023-02-09T23:08:27Z")

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Hi!

Ive been having issues with using Scaler as a MIDI Fx. The problem is the plugin randomly changes pitch and even when duplicating the exact same instance on the plugin onto another track I get a transposed version  
Thanks in advance for your help.

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**Author:** ![jamieh](https://yyz2.discourse-cdn.com/flex012/user_avatar/forum.scalermusic.com/jamieh/32/1139_2.png) [@jamieh](https://forum.scalermusic.com/u/jamieh)\
**Post date:** [February 9, 2023, 11:23pm UTC](https://forum.scalermusic.com/t/scaler-randomly-changing-pitch/13004/2 "2023-02-09T23:23:09Z")

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To help please include -

1. DAW and version
2. OS version
3. Scaler version  
A screen shot of the setup if possible.  
What is changing pitch? The chord that it plays? Are you send to another instrument or just the internal sounds?  
Thanks.

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**Author:** ![StewartPab](https://avatars.discourse-cdn.com/v4/letter/s/a6a055/32.png) [@StewartPab](https://forum.scalermusic.com/u/StewartPab)\
**Post date:** [February 9, 2023, 11:51pm UTC](https://forum.scalermusic.com/t/scaler-randomly-changing-pitch/13004/3 "2023-02-09T23:51:34Z")

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1. Im on Logic 10.7.5
2. Monterey 12.6.2
3. 

 ![image](https://canada1.discourse-cdn.com/flex012/uploads/scalermusic/original/2X/0/046bbadead8030e279af7e194bfc6cc49f10bfb2.jpeg)

The chord it plays is the same, what changes pitch is the sound output. For instance if I load two exact copies of the same plugin with the same settings on two channels, they both play the same chords but they sound different.

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**Author:** ![jamieh](https://yyz2.discourse-cdn.com/flex012/user_avatar/forum.scalermusic.com/jamieh/32/1139_2.png) [@jamieh](https://forum.scalermusic.com/u/jamieh)\
**Post date:** [February 10, 2023, 12:10am UTC](https://forum.scalermusic.com/t/scaler-randomly-changing-pitch/13004/4 "2023-02-10T00:10:50Z")

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And you’re using Scaler 2.7.2?  
What instrument is Kontakt playing? Same in both?

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**Author:** ![james](https://yyz2.discourse-cdn.com/flex012/user_avatar/forum.scalermusic.com/james/32/541_2.png) [@james](https://forum.scalermusic.com/u/james)\
**Post date:** [February 10, 2023, 5:15am UTC](https://forum.scalermusic.com/t/scaler-randomly-changing-pitch/13004/5 "2023-02-10T05:15:43Z")

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Hi @StewartPab and welcome to the forum.

Please ensure you are running the latest Scaler version - 2.7.2 (though 2.7.3 will be released through Plugin Boutique very shortly) as there is fixed compatibility with Logic Pro X and M1 machines.  
Ensure that you enable “Filter Sysex Messages” in the preferences pane. See attached screenshot.

This option is only available on Scaler Control in Logic Pro X.

Cheers!

 ![Screen Shot 2023-02-10 at 4.09.45 pm](https://canada1.discourse-cdn.com/flex012/uploads/scalermusic/original/2X/d/d129b9e6acadd1e9302ea680f3532e3ab4127745.png)