Save small

After “saving small” Rhino still asks me to “save” when I want to close the document. I do not manipulate anything in between, just selecting the commands from the menu …
It actually won’t save again when I confirm “save”, but it’s a weird behavior nevertheless.

Save small is the file minus the render meshes which provide any shaded views. I suppose if the model were in a shaded mode when you go to close the file this is the reason. The change would be that there are render meshes present.