# Some tracks play at approx 50% speed in Engine DJ when exported from Lexicon

**URL:** <https://discuss.lexicondj.com/t/some-tracks-play-at-approx-50-speed-in-engine-dj-when-exported-from-lexicon/3643>\
**Category:** Bug Reports\
**Tags:** engine-dj\
**Created:** [July 31, 2026, 3:04pm UTC](https://discuss.lexicondj.com/t/some-tracks-play-at-approx-50-speed-in-engine-dj-when-exported-from-lexicon/3643 "2026-07-31T15:04:32Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Keno](https://discuss.lexicondj.com/user_avatar/discuss.lexicondj.com/keno/32/207_2.png) [@Keno](https://discuss.lexicondj.com/u/Keno)\
**Post date:** [July 31, 2026, 3:04pm UTC](https://discuss.lexicondj.com/t/some-tracks-play-at-approx-50-speed-in-engine-dj-when-exported-from-lexicon/3643/1 "2026-07-31T15:04:32Z")

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Please fill in this bug report template:

**Lexicon version** : 1.11.10  
**Operating system (remove one)**: Mac

**Bug description** :  
Some tracks (I have identified 2 in my library) play back at half speed when exported to engine DJ. This is only fixable by deleting the track and reimporting it in engine instead of lexicon.  
**Step by step to reproduce** :  
I don’t know what causes this behavior, but I can share my library and the files. I’ll upload the library and refer to this thread in the report.

Edit: The Desktop Software of engine fixes playback afte reanalyzing. My Prime Go doesn’t though.

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**Author:** ![Christiaan](https://discuss.lexicondj.com/user_avatar/discuss.lexicondj.com/christiaan/32/10_2.png) [@Christiaan](https://discuss.lexicondj.com/u/Christiaan)\
**Post date:** [August 2, 2026, 11:17am UTC](https://discuss.lexicondj.com/t/some-tracks-play-at-approx-50-speed-in-engine-dj-when-exported-from-lexicon/3643/2 "2026-08-02T11:17:35Z")

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It could be related to sample rate being wrong in Lexicon or Engine. Try reloading tags in Lexicon before the sync (it always reloads samplerate from file).  
And you might find this happens to tracks with an odd samplerate

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**Author:** ![Keno](https://discuss.lexicondj.com/user_avatar/discuss.lexicondj.com/keno/32/207_2.png) [@Keno](https://discuss.lexicondj.com/u/Keno)\
**Post date:** [August 2, 2026, 11:33am UTC](https://discuss.lexicondj.com/t/some-tracks-play-at-approx-50-speed-in-engine-dj-when-exported-from-lexicon/3643/3 "2026-08-02T11:33:34Z")

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It seems that lexicon in fact has these tracks detected at half the actual sample rate. However I see no way to make lexicon update the sample-rate. Is there a way to trigger that?

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**Author:** ![Christiaan](https://discuss.lexicondj.com/user_avatar/discuss.lexicondj.com/christiaan/32/10_2.png) [@Christiaan](https://discuss.lexicondj.com/u/Christiaan)\
**Post date:** [August 2, 2026, 12:05pm UTC](https://discuss.lexicondj.com/t/some-tracks-play-at-approx-50-speed-in-engine-dj-when-exported-from-lexicon/3643/4 "2026-08-02T12:05:58Z")

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Reload tags, it always update sample rate

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**Author:** ![Keno](https://discuss.lexicondj.com/user_avatar/discuss.lexicondj.com/keno/32/207_2.png) [@Keno](https://discuss.lexicondj.com/u/Keno)\
**Post date:** [August 2, 2026, 12:13pm UTC](https://discuss.lexicondj.com/t/some-tracks-play-at-approx-50-speed-in-engine-dj-when-exported-from-lexicon/3643/5 "2026-08-02T12:13:25Z")

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Should have tried that. Thank you, that fixed it!

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**Author:** ![system](https://discuss.lexicondj.com/uploads/default/original/1X/2852b0522290d8aface3d14f693a724cf3adf786.png) [@system](https://discuss.lexicondj.com/u/system)\
**Post date:** [September 1, 2026, 12:14pm UTC](https://discuss.lexicondj.com/t/some-tracks-play-at-approx-50-speed-in-engine-dj-when-exported-from-lexicon/3643/6 "2026-09-01T12:14:13Z")

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