Steps to reproduce:
* Open MITK-Data/3D+t-Heart
* Choose file reader: MITK DICOM Reader v2 (autoselect)
* Use spin box (arrow up) in Image Navigator to navigate to last time step
--> Slider alternates between time step 0 and 1 (data set has 3 time steps)
If you use the handle of the time step slider directly, the handle can be moved to time step 2, but the image of time step 0 is shown!
Exporting the image to .nrrd does not solve the issue.
However, that issue did not occur with other 3d+t .nrrd images.