When you create multiple segmentations under one parent node, only the segmentation with the highest layer is displayed.
Steps to reproduce:
- Load an image
- Create two segmentations for the image with the 2D Add tool
If the two segmentations are set to the same layer in the properties, both are shown but overlayed areas are not shown in different opacities.
If you turn off the image node, the segmentations are shown correctly.