# My core never gets to breathing cyan, it's only ever 'fast cyan'

**URL:** <https://community.particle.io/t/my-core-never-gets-to-breathing-cyan-its-only-ever-fast-cyan/2414>\
**Category:** Troubleshooting\
**Created:** [January 27, 2014, 4:07pm UTC](https://community.particle.io/t/my-core-never-gets-to-breathing-cyan-its-only-ever-fast-cyan/2414 "2014-01-27T16:07:26Z")\
**Posts on this page:** 1\
**Showing post:** 20

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**Author:** ![kudos](https://avatars.discourse-cdn.com/v4/letter/k/b2d939/32.png) [@kudos](https://community.particle.io/u/kudos)\
**Post date:** [January 31, 2014, 5:03pm UTC](https://community.particle.io/t/my-core-never-gets-to-breathing-cyan-its-only-ever-fast-cyan/2414/20 "2014-01-31T17:03:30Z")

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It sounds like you have unfortunately encountered the CFOD (Cyan Flash Of Death). Good news is you’re not alone and forces have been mobilized to fix it 😄

> **[Bug bounty: Kill the 'Cyan flash of death'](https://community.particle.io/t/bug-bounty-kill-the-cyan-flash-of-death/1322)**
>
> Hi all, A number of you have encountered a bug where the Spark Core will not hold a persistent connection to the Cloud, and does not successfully attempt to re-connect to the Cloud. Here are a few threads on the topic: NOTE: This is a...

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_[View the full topic](https://community.particle.io/t/my-core-never-gets-to-breathing-cyan-its-only-ever-fast-cyan/2414)._