Thanks. I get some weird indices but I am also not waiting for the locators to build. I build a separate locator for each thread in the Initialize function using vtkSMPTools. But I guess from the name, vtkStaticCellLocator, this obviously goes wrong.
I will wait for a single locator to build and use it across multiple threads. I am sure this should work.
If I track down and locate a data race, I will ensure to communicate it such that errors are fixed. Thanks for replying
Jens