You have added the 'Left Align' and 'Right Align' buttons, which don't work... I don't know what these buttons are for or why they don't work, but if you will instead choose the 'Align Text Left' and 'Align Text Right' buttons, you will have better luck.
If you will use the drop-down to choose to look at commands on the Home tab, these buttons are at the top of the list.
--Lilliabeth