Hi,
today, Lars Gerigk form the DKFZ Radiology hat a closer look at 3M3.
The alignment of MR images is misleading.
The bundle advises you to "reinit" the datanode (which leads to a reset of the image navigation, which is not nice).
Then, the MR images are aligned.
However, the message only disappears, if the user de-selects and selects the node again after alignment.