# Error When Updating Geometry

**URL:** <https://www.simscale.com/forum/t/error-when-updating-geometry/101448>\
**Category:** Project Support\
**Created:** [November 12, 2026, 12:04pm UTC](https://www.simscale.com/forum/t/error-when-updating-geometry/101448 "2026-11-12T12:04:52Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Starker](https://www.simscale.com/forum/letter_avatar/starker/32/6_22734026db12803ebb3e059622ac3534.png) [@Starker](https://www.simscale.com/forum/u/Starker)\
**Post date:** [November 12, 2026, 12:04pm UTC](https://www.simscale.com/forum/t/error-when-updating-geometry/101448/1 "2026-11-12T12:04:52Z")

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I need to update the model in my simulation. I followed the normal workflow of:

1. Imported new geometry from OnShape

2. Used “fix interferences” to clean up screw to threaded hole connections (OnShape thread decals do not translate to SimScale)

3. Duplicated old sim

4. Swapped geometry in duplicated sim

Geometry swap failed with Error Code: C6qUwdgA.

[OnShape](https://cad.onshape.com/documents/910a20b44276c4d0a7394634/w/3679f3181966a6d01190bfa4/e/09f1e8d24f9a7a7ceeb4ac93?renderMode=0&uiState=6af50a044468e4b9b3114efe)and [SimScale](https://www.simscale.com/projects/Starker/rocket_engine_test_mount_1205518582) projects are public.

I am waiting on SimScale Support.