After saving my Drawing; the next time I opened it, the break lines, dimensions, and section marks fly off, the break lines are in a different position and/or the model does not show up. I am attaching a pdf of the drawing I made last week and a screen shot of what happened when I opened it this morning. I put the break views on a separate layer to turn them off and locked the drawing view.
The same thing happened last week with a different drawing, I fixed it, saved it and reopened it only to see it back the way it was before I fixed it.
Ok, first rebuild the drawing and see if that fixes it. Second if it's not saving, are you using a PDM and forgetting to check it out and in as you make changes?