# Display artefact depending on fields in the file

**URL:** https://discourse.paraview.org/t/display-artefact-depending-on-fields-in-the-file/6998
**Category:** ParaView Support
**Created:** [April 19, 2021, 10:59am UTC](https://discourse.paraview.org/t/display-artefact-depending-on-fields-in-the-file/6998 "2021-04-19T10:59:56Z")
**Posts on this page:** 3
**Page:** 1

<div class="post-metadata">

### Author: ![fredrik](https://discourse.paraview.org/user_avatar/discourse.paraview.org/fredrik/32/5351_2.png) [@fredrik](https://discourse.paraview.org/u/fredrik)
#### Post date: [April 19, 2021, 10:59am UTC](https://discourse.paraview.org/t/display-artefact-depending-on-fields-in-the-file/6998/1 "2021-04-19T10:59:56Z")

</div>

I ran into a strange display artefact where some fields display incorrectly. I attach two files: [bad.vtu](https://discourse.paraview.org/uploads/short-url/so8sMey7StpFbQwkPbT9EGesz8f.vtu) (partly broken) and (412.6 KB) [good.vtu](https://discourse.paraview.org/uploads/short-url/1t60QdPCgtm4F9XpII0pXrL7TmF.vtu) (256.1 KB) which works as expected.

The difference between the files is that `bad.vtu` has an additional field `u` which is not in the `good.vtu` file. The existence of this field breaks visualization of _some but not all other fields_ in the file, see screenshots.

**`good.vtu`, second field (`Visco-plastic strain 11 mode: 2`)**

 ![good](https://discourse.paraview.org/uploads/default/original/2X/4/4016385570dc76a4876917c077d01f766bdaffdd.png)

**`bad.vtu`, second field (`Visco-plastic strain 11 mode: 2`)**  
Note in particular that the _first field_ still displays correctly (not included as a screenshot).

 ![bad](https://discourse.paraview.org/uploads/default/original/2X/5/58501cae217c14930900818966346c9f41444ee4.png)

**`bad.vtu`, second field (`Visco-plastic strain 11 mode: 2`) with field `u` deactivated**  
Note that the `u` field is deactivated, which “fixes” the display.

 ![bad-deactivate-u](https://discourse.paraview.org/uploads/default/original/2X/7/773b36657852e2daf73bc672f53dcd68290be567.jpeg)

What could be the problem here? Is the file misformed? Bug in ParaView?  
I thought it might be some scaling issue or similar, but there is only a factor of 100 between the fields, and it is strange it only happens with some fields.

This is in ParaView 5.9.0.

---

<div class="post-metadata">

### Author: ![mwestphal](https://discourse.paraview.org/user_avatar/discourse.paraview.org/mwestphal/32/17_2.png) [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [April 19, 2021, 5:48pm UTC](https://discourse.paraview.org/t/display-artefact-depending-on-fields-in-the-file/6998/2 "2021-04-19T17:48:48Z")

</div>

Definitely a bug. Could you open an issue ?

[https://gitlab.kitware.com/paraview/paraview/-/issues](https://gitlab.kitware.com/paraview/paraview/-/issues)

---

<div class="post-metadata">

### Author: ![fredrik](https://discourse.paraview.org/user_avatar/discourse.paraview.org/fredrik/32/5351_2.png) [@fredrik](https://discourse.paraview.org/u/fredrik)
#### Post date: [January 10, 2022, 5:36pm UTC](https://discourse.paraview.org/t/display-artefact-depending-on-fields-in-the-file/6998/3 "2022-01-10T17:36:19Z")

</div>

Forgot about this. Confirmed that it still happens with ParaView 5.10, and opened an issue: [https://gitlab.kitware.com/paraview/paraview/-/issues/21166](https://gitlab.kitware.com/paraview/paraview/-/issues/21166)