I don’t know if this will be the issue, but I’ve found views act strangely when the associated table has been corrupted. I can’t say this will fix the issue, but its a quick check. Edit the table used by the view. In the grid showing all the data fields to be displayed, look for something indicating that a row is not referencing an actual field name. It will be obvious. If one is found, delete that row from the table and resave. No guarantees, but something to check for.