AMR Slice Filter Fails in parallel

Hi,

It appears that the AMR slice filter has some unpredictable behavior when running in parallel. I wrote my own reader inheriting off the vtkAMRBaseReader. The parallelism is all handled through the controller on the base reader. The vtkOverlapping data structure looks goood and parent child information is generated just fine. In serial it works 100% of the time, however in parallel it breaks in certain cases.

On some occasions it seg faults and on some, it cuts holes in the grid. I think this may be a bug in the vtkAMRBaseReader. I have attached a image below.

If anybody is interested in working this with me, it would be great. I'll be happy to provide the reader code and an example file.