# Missing data after slice
**URL:** https://discourse.paraview.org/t/missing-data-after-slice/4359
**Category:** ParaView Support
**Created:** [May 18, 2020, 1:52pm UTC](https://discourse.paraview.org/t/missing-data-after-slice/4359 "2020-05-18T13:52:52Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@Rob777](https://discourse.paraview.org/u/Rob777)
#### Post date: [May 18, 2020, 1:52pm UTC](https://discourse.paraview.org/t/missing-data-after-slice/4359/1 "2020-05-18T13:52:52Z")
Hi everybody,
I have a tridimensional domain (a cylinder) of a scalar field. The case represents flow over an airfoil. After taking a slice of it (a plane parallel to the two cylinder’s faces and passing to the midpoint cylinder axis) and plotting the 2-D resulting scalar field, it seems data is missing around the airfoil flow
Plotting the wireframe it seems there are missing cell/data points after the slice, some suggestions ? Thank you
Edit :
The case is a Fluent solution converted to Encase format.
I tried also with the latest Paraview 5.8 and the following error appears as I try to slice the 3D set
**Generic Warning: In /home/buildslave/dashboards/buildbot/paraview-pvbinsdash-linux-shared-release\_superbuild/build/superbuild/paraview/src/VTK/Common/DataModel/vtkPolyhedron.cxx, line 1320**
**The polyhedron is not watertight or non-manifold because the number of faces of edge 175-171 is not 2 but 1**
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [May 19, 2020, 3:07am UTC](https://discourse.paraview.org/t/missing-data-after-slice/4359/2 "2020-05-19T03:07:31Z")
Looks like you found the problem. Can you share the dataset to see if we can help fix the issue.
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### Author:  [@Rob777](https://discourse.paraview.org/u/Rob777)
#### Post date: [May 19, 2020, 8:06am UTC](https://discourse.paraview.org/t/missing-data-after-slice/4359/3 "2020-05-19T08:06:31Z")
Thank you for the help, very appreciated but unfortunately I cannot share it, it is not a dataset I own and its size are on the order of GBs.
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [May 20, 2020, 4:45am UTC](https://discourse.paraview.org/t/missing-data-after-slice/4359/4 "2020-05-20T04:45:33Z")
Your dataset is invalid, it is likely that fixing your dataset will fix the issue you see.
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### Author:  [@Rob777](https://discourse.paraview.org/u/Rob777)
#### Post date: [May 20, 2020, 7:50am UTC](https://discourse.paraview.org/t/missing-data-after-slice/4359/5 "2020-05-20T07:50:44Z")
It seems I fixed the problem. In Paraview 5.8 I ticked “crinkle the slice” and all turned good. In paraview 5.4 ticking this option has no effect on solving the problem. Is there much difference beetween “crinkle the slice” and “triangulate” ?