The "Checkliste Segmentierung - 3D Segmentierung" states that a preview segmentation mask will be removed if the clear button is pressed. Instead, only the set seed point will be removed.
- Open a 3D dataset
- Acitvate the Fast Marching 3D segmentation tool
- Set a seed point and wait until the mask has been generated
- Click "Clear" and see how only the seed point will be removed