# Scaler control doesn't work on my midi fx, but works when I insert it in my instrument track

**URL:** <https://forum.scalermusic.com/t/scaler-control-doesnt-work-on-my-midi-fx-but-works-when-i-insert-it-in-my-instrument-track/1546>\
**Category:** Scaler 2 Support\
**Created:** [November 20, 2019, 6:42pm UTC](https://forum.scalermusic.com/t/scaler-control-doesnt-work-on-my-midi-fx-but-works-when-i-insert-it-in-my-instrument-track/1546 "2019-11-20T18:42:54Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![liothomas](https://avatars.discourse-cdn.com/v4/letter/l/d07c76/32.png) [@liothomas](https://forum.scalermusic.com/u/liothomas)\
**Post date:** [November 21, 2019, 8:59am UTC](https://forum.scalermusic.com/t/scaler-control-doesnt-work-on-my-midi-fx-but-works-when-i-insert-it-in-my-instrument-track/1546/4 "2019-11-21T08:59:31Z")

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I got the same issue mentioned in this thread

> [@Wont work in Studio One 4](https://forum.scalermusic.com/t/wont-work-in-studio-one-4/906/6):
>
> I’m on Studio One 4.5 and I only see Scaler in my plugin as AU can’t find the VST and VST3… Help.

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_[View the full topic](https://forum.scalermusic.com/t/scaler-control-doesnt-work-on-my-midi-fx-but-works-when-i-insert-it-in-my-instrument-track/1546)._