Center align doesnt work well for tables

Center align doesnt work well for tables

When I select whole table or whole column and then I select formating/text align/center, text that is already writen into the cells corectly center aligns. But, empty cells stay left align and they are not affected with Select All and Center align command.
It did use to work. I was able to set a default for whole table ONCE and then just all cells were center align. Now, it has to be done over and over again.