The current implementation of ContourModelSetToImageFilter and its using QmitkContourModelSetToImageWidget currently always uses the first time step of the contoure model set. So if a ContourModelSet has multiple time step, other time steps will be ignored even if they are closer to the respective currently selected time point.

How to check if this problem is fixed:

If the ContourModel has multiple time step, it is converted to a segmentation, and the currently selected time point is not the first time step of the ContourModel, the approperiate time step (unequal 0) should be used.