Pipeline crash upon "DisplayDataonImage" Cp2.1.1

Hi there,
I do run occasionally into the following bug:

Traceback (most recent call last):
File “cellprofiler\pipeline.pyc”, line 1934, in run_image_set
File “cellprofiler\modules\displaydataonimage.pyc”, line 261, in run
File “cellprofiler\modules\displaydataonimage.pyc”, line 347, in display_on_figure
IndexError: invalid index

Any ideas? Could it correlate with large object numbers?

Have a nice weekend!
cheers, Benedikt