# Playback delay when using external clock

**URL:** <https://forum.scalermusic.com/t/playback-delay-when-using-external-clock/15179>\
**Category:** Scaler 2 Support\
**Tags:** AbletonLive\
**Created:** [November 30, 2023, 11:05pm UTC](https://forum.scalermusic.com/t/playback-delay-when-using-external-clock/15179 "2023-11-30T23:05:15Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![rfus](https://avatars.discourse-cdn.com/v4/letter/r/958977/32.png) [@rfus](https://forum.scalermusic.com/u/rfus)\
**Post date:** [November 30, 2023, 11:05pm UTC](https://forum.scalermusic.com/t/playback-delay-when-using-external-clock/15179/1 "2023-11-30T23:05:15Z")

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I have run into an issue with Scaler 2 (2.8.1) and Ableton (11.3.13) when using an external device as the master clock.

When using an external clock source into Ableton (beat step pro) and Scaler 2 synced to DAW playback of the scaler chord pattern is delayed by 1 beat and starts on the 2nd beat. If Ableton is set as the master clock playback of the scaler pattern will start on beat 1 as expected. Other vst’s don’t suffer from this issue.

Any ideas ?

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**Author:** ![mreduff](https://avatars.discourse-cdn.com/v4/letter/m/c67d28/32.png) [@mreduff](https://forum.scalermusic.com/u/mreduff)\
**Post date:** [April 16, 2024, 11:57am UTC](https://forum.scalermusic.com/t/playback-delay-when-using-external-clock/15179/2 "2024-04-16T11:57:42Z")

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I’m having this exact issue as well! I’m using Live 11 and the newest Scaler version with my hardware. At first I thought it was a latency issue with Ableton, but no other plugins are having this issue and Scaler stays in sync no matter what tempo. Always on the first downbeat.