# Second level nested proxy property data is not written to .pvsm

**URL:** https://discourse.paraview.org/t/second-level-nested-proxy-property-data-is-not-written-to-pvsm/5085
**Category:** Development
**Created:** [August 11, 2020, 5:57pm UTC](https://discourse.paraview.org/t/second-level-nested-proxy-property-data-is-not-written-to-pvsm/5085 "2020-08-11T17:57:05Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![HollowSun0](https://discourse.paraview.org/user_avatar/discourse.paraview.org/hollowsun0/32/431_2.png) [@HollowSun0](https://discourse.paraview.org/u/HollowSun0)
#### Post date: [August 11, 2020, 5:57pm UTC](https://discourse.paraview.org/t/second-level-nested-proxy-property-data-is-not-written-to-pvsm/5085/1 "2020-08-11T17:57:05Z")

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Hello!

I’m having a small issue related to saving the data of a proxy property inside another proxy instantiated by another proxy property. The tree looks like this

Main Source Proxy -\> Proxy1 -\> Proxy2

Main Source Proxy is the filter found in a ParaView pipeline. Proxy2 information does not save into state file. When I save the state file, I get

```
<Proxy group="filters" type="MainSourceProxyName" id="34523" servers="1">
  <Property name="Input" id="34523.Input" number_of_elements="1">
    <Proxy value="31977" output_port="0"/>
    <Domain name="groups" id="34523.Input.groups"/>
    <Domain name="input_type" id="34523.Input.input_type"/>
  </Property>
  <Property name="Proxy1Name" id="34523.Proxy1Name" number_of_elements="1">
    <Proxy value="34522"/>
    <Domain name="proxy_list" id="34523.Proxy1Name.proxy_list">
      <Proxy value="34522"/>
    </Domain>
  </Property>
</Proxy>

```

value 34522 points to:

```
<Proxy group="proxy_group1" type="Proxy1Name" id="34522" servers="1">
  <Property name="Input1" id="34522.Input1">
    <Domain name="groups" id="34522.Input1.groups"/>
    <Domain name="input_type" id="34522.Input1.input_type"/>
  </Property>
  <Property name="Input2" id="34522.Input2">
    <Domain name="groups" id="34522.Input2.groups"/>
    <Domain name="input_type" id="34522.Input2.input_type"/>
  </Property>
  <Property name="Proxy2Name" id="34522.Proxy2Name" number_of_elements="1">
    <Proxy value="34521"/>
    <Domain name="proxy_list" id="34522.Proxy2Name.proxy_list">
      <Proxy value="34521"/>
    </Domain>
  </Property>
</Proxy>

```

Finding 34521 in the state file gives no results. Proxy1Name is in proxy group “proxy\_group1” and Proxy2Name is in proxy group “proxy\_group2”.

It would be similar to adding a proxy property to the VoronoiKernel and instantiating a PointVolumeInterpolator in the state file.

I am currently using ParaView 5.7. I don’t think such a case exists in ParaView currently… not that I know of.

I’m able to provide more information if needed.

Thank you,  
Patrick Laurin

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<div class="post-metadata">

### Author: ![lhofmann](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/l/9e8a1a/32.png) [@lhofmann](https://discourse.paraview.org/u/lhofmann)
#### Post date: [August 12, 2020, 7:14am UTC](https://discourse.paraview.org/t/second-level-nested-proxy-property-data-is-not-written-to-pvsm/5085/2 "2020-08-12T07:14:39Z")

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This issue was fixed just recently: [https://gitlab.kitware.com/paraview/paraview/-/issues/19986](https://gitlab.kitware.com/paraview/paraview/-/issues/19986)

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<div class="post-metadata">

### Author: ![HollowSun0](https://discourse.paraview.org/user_avatar/discourse.paraview.org/hollowsun0/32/431_2.png) [@HollowSun0](https://discourse.paraview.org/u/HollowSun0)
#### Post date: [August 12, 2020, 2:39pm UTC](https://discourse.paraview.org/t/second-level-nested-proxy-property-data-is-not-written-to-pvsm/5085/3 "2020-08-12T14:39:27Z")

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Sweet! Thank you!

Patrick Laurin