ive had that happen to me im using version 2.42a is this a bug? i lost 45mins of work a few times now…
its really teaching me to save every 5mins
In edit mode it will move all the selected verts to the center of the selection. If you have all the verts selected it will put all of the verts in one location – will look like there is only one vert. Press ctrl-z to undo.