# Weird preview thumbnail playback speed problem

**URL:** <https://forum.lottiefiles.com/t/weird-preview-thumbnail-playback-speed-problem/904>\
**Category:** LottieFiles Website\
**Created:** [May 2, 2021, 4:40pm UTC](https://forum.lottiefiles.com/t/weird-preview-thumbnail-playback-speed-problem/904 "2021-05-02T16:40:44Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![isionindustriesoffic](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.lottiefiles.com/isionindustriesoffic/32/3293_2.png) [@isionindustriesoffic](https://forum.lottiefiles.com/u/isionindustriesoffic)\
**Post date:** [May 2, 2021, 4:40pm UTC](https://forum.lottiefiles.com/t/weird-preview-thumbnail-playback-speed-problem/904/1 "2021-05-02T16:40:45Z")

</div>

While previewing my animations, I noticed that one of my animations is playing at a different speed and not the default 1x speed. I tested previewing my animations on various mobile browsers on my android phone and iPad, the results are the same so I thought I would screen record from my iPad. The singular animation plays at a faster speed on Chrome and Safari but on Firefox it plays at a slower speed. I checked through more pages of my previews and it seems like that is the only animation displaying like this. Please check the linked screen recordings for reference

[Chrome Playback](https://youtu.be/dMJfQJoQbKY)

[Firefox Playback](https://youtu.be/hJK7nbgiBh8)