# Picking edges of shell compounds for refinement is not working properly

**URL:** <https://prepomax.discourse.group/t/picking-edges-of-shell-compounds-for-refinement-is-not-working-properly/1333>\
**Category:** Bug Reports\
**Created:** [December 11, 2023, 9:19pm UTC](https://prepomax.discourse.group/t/picking-edges-of-shell-compounds-for-refinement-is-not-working-properly/1333 "2023-12-11T21:19:08Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![Gunnar](https://avatars.discourse-cdn.com/v4/letter/g/ed655f/32.png) [@Gunnar](https://prepomax.discourse.group/u/Gunnar)\
**Post date:** [December 11, 2023, 9:19pm UTC](https://prepomax.discourse.group/t/picking-edges-of-shell-compounds-for-refinement-is-not-working-properly/1333/1 "2023-12-11T21:19:08Z")

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Hi,

it seems there is a new bug when picking edges of **shell compounds** for refinement:  
right video shows v1.4.0 where the selection works fine, the left video with v2.0.0 shows the bug (i imported the faces as step file). The faces were imported as single faces, the compound is created in prepomax.  
Also you can see that the edges in v2.2.0 are no longer highlighted when using the option “Edge angle”:

![Animation24](https://global.discourse-cdn.com/free1/uploads/prepomax/original/2X/d/df6b21e0101ca3e71f8e6dc791125646677775ca.gif)

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**Author:** ![FEAnalyst](https://yyz2.discourse-cdn.com/free1/user_avatar/prepomax.discourse.group/feanalyst/32/688_2.png) [@FEAnalyst](https://prepomax.discourse.group/u/FEAnalyst)\
**Post date:** [December 11, 2023, 10:06pm UTC](https://prepomax.discourse.group/t/picking-edges-of-shell-compounds-for-refinement-is-not-working-properly/1333/2 "2023-12-11T22:06:08Z")

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I can confirm this:

 ![bug](https://global.discourse-cdn.com/free1/uploads/prepomax/original/2X/8/88911314f07c2d175c01329957e1428e5fba98d8.png)

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**Author:** ![Matej](https://avatars.discourse-cdn.com/v4/letter/m/a698b9/32.png) [@Matej](https://prepomax.discourse.group/u/Matej)\
**Post date:** [December 12, 2023, 6:55am UTC](https://prepomax.discourse.group/t/picking-edges-of-shell-compounds-for-refinement-is-not-working-properly/1333/3 "2023-12-12T06:55:26Z")

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Can you please share the model?

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<div class="post-metadata">

**Author:** ![Gunnar](https://avatars.discourse-cdn.com/v4/letter/g/ed655f/32.png) [@Gunnar](https://prepomax.discourse.group/u/Gunnar)\
**Post date:** [December 12, 2023, 7:03am UTC](https://prepomax.discourse.group/t/picking-edges-of-shell-compounds-for-refinement-is-not-working-properly/1333/4 "2023-12-12T07:03:56Z")

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[shell.zip](https://prepomax.discourse.group/uploads/short-url/zrKBBGXgkriBYt62c8nO2g70KDJ.zip) (8.3 KB)  
see attached

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<div class="post-metadata">

**Author:** ![Matej](https://avatars.discourse-cdn.com/v4/letter/m/a698b9/32.png) [@Matej](https://prepomax.discourse.group/u/Matej)\
**Post date:** [December 12, 2023, 9:15pm UTC](https://prepomax.discourse.group/t/picking-edges-of-shell-compounds-for-refinement-is-not-working-properly/1333/5 "2023-12-12T21:15:32Z")

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I have fixed this behavior and released a new developer version. Give it a try.

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<div class="post-metadata">

**Author:** ![Matej](https://avatars.discourse-cdn.com/v4/letter/m/a698b9/32.png) [@Matej](https://prepomax.discourse.group/u/Matej)\
**Post date:** [December 20, 2023, 7:21pm UTC](https://prepomax.discourse.group/t/picking-edges-of-shell-compounds-for-refinement-is-not-working-properly/1333/6 "2023-12-20T19:21:24Z")

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I will consider this a resolved bug.

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<div class="post-metadata">

**Author:** ![Matej](https://avatars.discourse-cdn.com/v4/letter/m/a698b9/32.png) [@Matej](https://prepomax.discourse.group/u/Matej)\
**Post date:** [December 20, 2023, 7:21pm UTC](https://prepomax.discourse.group/t/picking-edges-of-shell-compounds-for-refinement-is-not-working-properly/1333/7 "2023-12-20T19:21:27Z")

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