I had to turn off auto calculate in a l cal file I have been using for several years as the totals column kept being put into cell protection mode causing the column to show ERR. I tired resting the column to edit, saving the file as a new file, copying the file to another file & redoing the calculation field, nothing worked. This started happening right after updating to this version. The only way I could fix this was to turn off the autocalc on that column & force a recalculate hard to update the column each time.