# History outputs not highlighted when Pre-tension is involved

**URL:** <https://prepomax.discourse.group/t/history-outputs-not-highlighted-when-pre-tension-is-involved/2645>\
**Category:** Bug Reports\
**Created:** [April 23, 2025, 6:41pm UTC](https://prepomax.discourse.group/t/history-outputs-not-highlighted-when-pre-tension-is-involved/2645 "2025-04-23T18:41:58Z")\
**Posts on this page:** 3\
**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:** [April 23, 2025, 6:41pm UTC](https://prepomax.discourse.group/t/history-outputs-not-highlighted-when-pre-tension-is-involved/2645/1 "2025-04-23T18:41:58Z")

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Normally, created history outputs are graphically highlighted in the result tab when selected/hovered with the cursor. However, as soon as pre-tension is involved, this no longer works.  
I don’t know if this is a known limitation or a bug, but I’m hoping it’s a bug that can be fixed 🙂

Thanks

highlighting without pre-tension:  
 ![s1](https://global.discourse-cdn.com/free1/uploads/prepomax/original/2X/0/021113a46f7c1d61dd7195c1ba8e0abfdec58254.gif)

behavior with pre-tension activated:  
 ![s2](https://global.discourse-cdn.com/free1/uploads/prepomax/original/2X/8/81467c0a8a0f032b51ded04466e8f9e29bb7ca55.gif)

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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:** [April 24, 2025, 7:27am UTC](https://prepomax.discourse.group/t/history-outputs-not-highlighted-when-pre-tension-is-involved/2645/2 "2025-04-24T07:27:20Z")

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Is it possible to get the .pmx file for this? I think the problem is that Calculix creates new nodes on the pre-tension surface, breaking the node numbering.

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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:** [April 24, 2025, 8:06pm UTC](https://prepomax.discourse.group/t/history-outputs-not-highlighted-when-pre-tension-is-involved/2645/3 "2025-04-24T20:06:45Z")

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Sure, thanks!  
[test.pmx](https://prepomax.discourse.group/uploads/short-url/8AhdQSWP5dXnYpQgCY4J7eeYIk1.pmx) (412.1 KB)