# Particle parameter bug

**URL:** <https://forums.unrealengine.com/t/particle-parameter-bug/475039>\
**Category:** FX\
**Tags:** parameter, bug, instance, unreal-engine, particle, vector, question\
**Created:** [November 26, 2020, 4:56pm UTC](https://forums.unrealengine.com/t/particle-parameter-bug/475039 "2020-11-26T16:56:34Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![KhenaB](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@KhenaB](https://forums.unrealengine.com/u/KhenaB)\
**Post date:** [November 26, 2020, 4:56pm UTC](https://forums.unrealengine.com/t/particle-parameter-bug/475039/1 "2020-11-26T16:56:34Z")

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Unable to submit a bug report using the form, tried on two browsers so submitting here.

When both a Color and Vector instance parameters are present, changing the Color parameter resets the Vector back to 0,0,0

![323167-vectorbug.gif](https://d3kjluh73b9h9o.cloudfront.net/original/4X/b/1/5/b15312a9012afea1828b65e36e5fb08876e6fc3d.gif)

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**Author:** ![anonymous\_user\_0d5d0b83](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_0d5d0b83](https://forums.unrealengine.com/u/anonymous_user_0d5d0b83)\
**Post date:** [December 3, 2020, 9:28pm UTC](https://forums.unrealengine.com/t/particle-parameter-bug/475039/2 "2020-12-03T21:28:07Z")

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Hello,

We’ve made a switch to a new bug reporting method using a more structured form. Please visit the link below for more details and report the issue using the new Bug Submission Form. Feel free to continue to use this thread for community discussion around the issue.

Thanks

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**Author:** ![KhenaB](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@KhenaB](https://forums.unrealengine.com/u/KhenaB)\
**Post date:** [December 7, 2020, 11:55pm UTC](https://forums.unrealengine.com/t/particle-parameter-bug/475039/3 "2020-12-07T23:55:56Z")

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Unfortunately, as stated in my first sentence, the bug report form you linked just doesn’t work, it never submits.

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**Author:** ![KhenaB](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@KhenaB](https://forums.unrealengine.com/u/KhenaB)\
**Post date:** [December 8, 2020, 12:07am UTC](https://forums.unrealengine.com/t/particle-parameter-bug/475039/4 "2020-12-08T00:07:32Z")

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I also posted about the form bug [here](https://answers.unrealengine.com/questions/999183/bug-report-form-doesnt-work.html) and found multiple users with the same issue