When inputting information into a Revit schedule, if you want to input multiple lines (not wrapped text) into the cell you can press Shift - Return.
When the schedule is placed on a sheet, its displayed correctly and multiple lines can be seen.
But when editting the schedule in a schedule view Revit will only display the first line, there is no ability to expand the row.
This makes it difficult and confusing to work with the informaiton - its easy to miss and delete.
The schedule view should be able to cater for multi-line input just like it does when placed on a sheet.