TTKTopologicalSimplificationByPersistence not working for certain thresholds

[kamakshidasan]

I am trying to apply TTKTopologicalSimplificationByPersistence on a particular dataset. After a particular threshold, the filter seems to hang.

I have attached the dataset exhibiting this behaviour.

vtk_file = 'smooth_fire_clip_tv_2270.vtk'
file_path = os.path.join(input_directory, vtk_file)

vtk_reader = LegacyVTKReader(FileNames=[file_path])
clean_to_grid = CleantoGrid(Input=vtk_reader)
tetrahedralize_data = Tetrahedralize(Input=clean_to_grid)

topological_simplification = TTKTopologicalSimplificationByPersistence(Input=tetrahedralize_data)
topological_simplification.PersistenceThreshold = 3.8
topological_simplification.ThresholdIsAbsolute = 1
topological_simplification.InputArray = ['POINTS', 'Elevation']
topological_simplification.PairType = 'Extremum-Saddle'

On thresholds from [0.001, 3.7], the filter seems to work as expected. However, on 3.8 the filter seems to hang.

The same is seen on Paraview GUI also.

OS: MacOS 14.7 (23H124), Paraview 5.12.0 was downloaded directly from Paraview's website. TTK was installed from the plugins section.

I will be unable to build TTK from scratch or change Paraview's version or use another OS at the moment, and hence this issue has not been tested on other environments.

Also, which paper is in the backend of TTKTopologicalSimplificationByPersistence?

smooth_fire_clip_tv_2270.vtk.zip