After a few slices across a 3D image are annotated eg. using Add tool, we can start interpolation. Once preview interpolation is generated, the slices based on which the interpolation as generated can be seen using option `Show Position Nodes`.
Sometime,However, when an annotation on a slice is erased eg. using Subtract tool, it is not removed from Data Manager even though interpolation contours immediately reflects this change.
Unchecking and Checking the checkbox again doesn't update the position nodes. these nodes include empty unThe slice which initially had an annotated sliceion remains as well.a ghost