Very nice catch !
There is a memory error in vtkAngularPeriodicDataArray. I have a fix coming here : https://gitlab.kitware.com/vtk/vtk/merge_requests/5874
In the meantime, avoid using angular periodic filter with 6 component array (they are considered symmetric tensor by the filter). You can either remove the 6 component array if you do not need it using PassArray filter or convert them to 9 component tensor using the calculator filter.