thanks for the nice example. I am using v5.6.1. A couple of things to note:
I am getting quite a bit of errors like this: Unexpected time value in MPISendList - expected (19-20) got 20.2237
if I try to reproduce the same by starting from a blank page and adding the sources/filers via the GUI, I am getting also quite a bit of zero-length pathlines. (I have the same with other datasets as well).
Are there some special tricks I have missed?