This issue doesn't seem to present itself unless the project has been open for a while. It is usually open for a while due to development occurring on a remote desktop.
While editing calculations in the cube, every time I hit a key, the editor jumps to the first calculation in the script. Often this happens and creates a situation where there is an incomplete calculation or new calculation, and it throws the error that I have to edit the MDX in the Script View instead of the Form View.
Any ideas on other than Save/Re-open?