[Closed] Saveasversion problem

Text objects (shape) do not display in viewport when I save file as previous version. I think it is a modifier refresh problem, because problem goes away when I switch to baseobject:

max modify mode 
with redraw off
(
	for o in objects where classof o.baseobject == text do 
	(
		modPanel.setCurrentObject o
	)
)
max create mode
 

Is this a bug?