Using >1 concurrent tasks will result in dropping frames

[RobertF]

Hey kwatts,
the task report for the highlighted tasks is empty, they are getting marked as completed but the log is empty:

http://fridayvfx.com/clipupload/mstsc_uDPxSrLlAY.png

I just saw that someone here has a very similar issue:

Maya concurrent task cause task to be marked as complete

I’m testing with concurrent tasks of 2 and mayabatch. what seems to be happening is that suddenly instead of a machine taking 2 tasks it is taking 4 tasks, and 2 of those tasks are done rendering after 1 second, the task is marked as complete, but no frames were saved. there is also no log for the completed task. it is simply marked as completed after 1 second without a log.

Thanks
-Robert