Unable to Move or Copy/Paste a merged cell

Unable to Move or Copy/Paste a merged cell

Hi,

This issue started this morning across all users of our Zoho Sheet Workbook where we cannot move a merged/unmerged cell from one cell to another. Even Ctrl+C and Ctrl+V copies over the colour of the cell and not the text itself. 
Prior to this we would just hover over the outline of the cell and drag and drop it in to the desired location, however this does not work anymore.

Please advise of fix for this.

Thanks