# Flashing video preview during editing

**URL:** <https://meta.discourse.org/t/flashing-video-preview-during-editing/167349>\
**Category:** Bug\
**Created:** [October 16, 2020, 9:25am UTC](https://meta.discourse.org/t/flashing-video-preview-during-editing/167349 "2020-10-16T09:25:36Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![nbianca](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/nbianca/32/157984_2.png) [@nbianca](https://meta.discourse.org/u/nbianca)\
**Post date:** [March 2, 2021, 3:00pm UTC](https://meta.discourse.org/t/flashing-video-preview-during-editing/167349/7 "2021-03-02T15:00:56Z")

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I implemented an experimental site setting “enable diffhtml preview” (default off) which makes the composer preview a bit smarter and does not restart animations. Enabling this setting should fix your problem.

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