[Yeru]

Dear all,

in ParaView 5.4.0, I am creating roundabout 1000 slices in a geometry by going through a loop with the index 0<i<1000.
To easily visually distinguish the slices, I color them by "Solid Color" and iterate [red, green, blue] by modulo of i.
I have a Python script, that worked fine in ParaView 5.0.1 - see the attached "slices_25th_all.png".slices_25th_all.png


My aim:
I want to color slices by "Solid Color" via a Python script.

My problem:

ColorBy(slice_display, None)

does give errors in PV 5.4.0 (but it worked in PV 5.0.1).
What I tried so far:
I generated a trace of my actions in the GUI - but any switch from (let's say) "vtkBlockColors" to "Solid Color" doesn't show up in the trace.

Minimal working example:
1. Download MWE.zip MWE.zip
2. run blockMesh
3. run paraFoam
4. start Python shell
5. run script MWE_colorBy_error.py
6. type execute_script()


This reproduces the error.