# Chapter 14 - Challenge - placing pearls

**URL:** <https://forums.kodeco.com/t/chapter-14-challenge-placing-pearls/13810>\
**Category:** 3D iOS Games by Tutorials\
**Created:** [April 23, 2016, 3:18pm UTC](https://forums.kodeco.com/t/chapter-14-challenge-placing-pearls/13810 "2016-04-23T15:18:17Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![darvat](https://assets.chunter.kodeco.com/user_avatar/forums.kodeco.com/darvat/32/31195_2.png) [@darvat](https://forums.kodeco.com/u/darvat)\
**Post date:** [April 23, 2016, 3:18pm UTC](https://forums.kodeco.com/t/chapter-14-challenge-placing-pearls/13810/1 "2016-04-23T15:18:17Z")

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I am currently working on the challenge in chapter 14 and duplicating the pearls using the option + cmd button combination and dragging the pearl to its new location.  
However, when I let go of the keys and want to simply re-position the newly created pearl, it leaves a wireframe, e.g.:

 ![](https://raywenderlich-com-v3-forums.s3.amazonaws.com/original/3X/1/f/1f798d265b429c9d8141b9f6715e25bd26c75c33.png)  
Would like to understand what’s that and why it gets now detached from the pearl?

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**Author:** ![chrislanguage](https://assets.chunter.kodeco.com/user_avatar/forums.kodeco.com/chrislanguage/32/104184_2.png) [@chrislanguage](https://forums.kodeco.com/u/chrislanguage)\
**Post date:** [April 25, 2016, 8:06am UTC](https://forums.kodeco.com/t/chapter-14-challenge-placing-pearls/13810/3 "2016-04-25T08:06:10Z")

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Hi there, the wireframe represents the attached physics geometry. What you’re experiencing is a known “feature” - for some reason the attached physics does not update when the node is moved. To get a full refresh, you have to close Xcode and then re-open your project - the wireframe should then once again be with its node.

It ain’t pretty, but at least there is a work around, even if it’s extremely painful. Hopefully Apple resolves it with the next release.