# Cluster output difference

**URL:** <https://discourse.mcneel.com/t/cluster-output-difference/115804>\
**Category:** Grasshopper\
**Created:** [January 7, 2021, 6:32pm UTC](https://discourse.mcneel.com/t/cluster-output-difference/115804 "2021-01-07T18:32:46Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![a.khaeez](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/a.khaeez/32/152357_2.png) [@a.khaeez](https://discourse.mcneel.com/u/a.khaeez)\
**Post date:** [January 7, 2021, 6:32pm UTC](https://discourse.mcneel.com/t/cluster-output-difference/115804/1 "2021-01-07T18:32:46Z")

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Hello, I have a problem with my cluster output.  
As I’m inside the cluster my data output is completely different from what I have on the main canvas.  
I’m using a random number inside the cluster (could it be this?). I have also copied the cluster twice.  
I also don’t know why some input and output names are not changing!

Thanks for the helps.

 ![image](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/5/7/4/57490cd47fcce7558b3e9dce93e966e19c5d82bc.png)  
 ![image](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/0/d/d/0dd3270a897558d28176cc1ff82395e8e3b86202.png)

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<div class="post-metadata">

**Author:** ![a.khaeez](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/a.khaeez/32/152357_2.png) [@a.khaeez](https://discourse.mcneel.com/u/a.khaeez)\
**Post date:** [January 7, 2021, 6:53pm UTC](https://discourse.mcneel.com/t/cluster-output-difference/115804/2 "2021-01-07T18:53:15Z")

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So I just checked again, the problem is definitely the random number. With a constant seed, the random number is generating two different lists inside and outside the cluster!  
Any idea why? Or how I can fix it? I Would appreciate the help @DavidRutten