Range of cells until first blank cell (formula not vba)

It works for me when I test it. At this point I'd have to see a sample workbook so...

To best describe or illustrate your problem you would be better off attaching a dummy workbook, the workbook should contain the same structure and some dummy data of the same type as the type you have in your real workbook - so, if a cell contains numbers & letters in this format abc-123 then that should be reflected in the dummy workbook.

If needed supply a before and after sheet in the workbook so the person helping you can see what you are trying to achieve.
To attach a file, click the "Go Advanced" button and then click the paperclip icon to open the Manage Attachments dialog.