I have a point shapefile in QGIS where I am manually adjusting some of the points due to overlap. I am using Toggle editing --> Move feature(s) --> Save for all layers. Instead of moving the points these are duplicated. The original point stays where it is, in addition an extra point is created wherever I move it to. This does not seem to lead to any any additional entries in the attribute table.
Any ideas about what I might be doing wrong?