[Paraview] Is it a BUG with temporal filters or I am missing something? [Developers, could you please verify if this is a bug or not?]

[Mohamad M. Nasr-Azadani]

Hi,

This is what I am doing:
Load a time-aware PVD file like this:

<?xml version="1.0"?>
 <VTKFile type="Collection" version="0.1" byte_order="LittleEndian"
compressor="vtkZLibDataCompressor">
   <Collection>
    <DataSet timestep="0.0" group="" part="0" file="vel_vec_0.vtr"/>
    <DataSet timestep="0.2" group="" part="0" file="vel_vec_1.vtr"/>
    <DataSet timestep="0.4" group="" part="0" file="vel_vec_2.vtr"/>
    <DataSet timestep="0.6" group="" part="0" file="vel_vec_3.vtr"/>
    <DataSet timestep="0.8" group="" part="0" file="vel_vec_4.vtr"/>
    <DataSet timestep="1.0" group="" part="0" file="vel_vec_5.vtr"/>
    <DataSet timestep="1.2" group="" part="0" file="vel_vec_6.vtr"/>
    <DataSet timestep="1.4" group="" part="0" file="vel_vec_7.vtr"/>
    <DataSet timestep="1.6" group="" part="0" file="vel_vec_8.vtr"/>
    <DataSet timestep="1.8" group="" part="0" file="vel_vec_9.vtr"/>
    <DataSet timestep="2.0" group="" part="0" file="vel_vec_10.vtr"/>
  </Collection>
</VTKFile>

Apply any of the 'temporal filters' including
-Temporal Cache w/ Cache size = 2
-Temporal Interpolator w/ Discrete Time Step Interval = 0.1
-Temporal Shift Scale w/ [default values]

to the loaded dataset.
I just press the play button on the the animation toolbar and it either
gives me this error message or crashes.

  ERROR: In
/home/utkarsh/Kitware/superbuild/paraview/src/paraview/VTK/Filtering/vtkStreamingDemandDrivenPipeline.cxx,
line 934

vtkPVPostFilterExecutive (0x2d5d190): No maximum number of pieces has been
set in the information for output port 0 on algorithm
vtkPVPostFilter(0x2d26830).

I am using PV 3.14.0 (and .1) on Ubuntu.

Has anyone experienced the same problem?
If the developers are reading this, could you please let me know if that is
a bug or not? I really need to decide soon wether or not to use PV for
post-processing of some particle-tracing part.

Thanks in advance,
Mohamad
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