If you close working data or segmentation plugin when 3d-interpolation is in progress, this will lead to crash.
Here is a video from the latest debug MITK:
This happens because processing QFuture is still running but there is no data for it.
I can reproduce it in MITK 2016.03 and in the latest master.
https://github.com/MITK/MITK/pull/165 fixes it.