Actual behavior:
Loading two images and creating a new segmentation node for each image does not change the node selection to the node created last. Clicking a segmentation node does not select its parent node and deselect other nodes.
This is happening, although the auto-selection mode is enabled per default (see Preferences of MultiLabel Segmentation or Segmentation).
One has to disable the auto-selection mode, apply the preference change with Ok and enable the auto-selection mode again, to produce the desired behavior.
Expected behavior:
Since the auto-selection mode is set to 'enabled' per default, the (MultiLabel) Segmentation Plugins should take care of the default preference.