Rotating multiline graphic label

I am trying to rotate all texts at 270 degrees. My label has got 2 words, strange enough the first part rotates but not the second part. See print screen below where as in the 1st column "43" is rotated and "2018" is not  Any idea why ?

Update: I got a workaround which is to add an extra column concatenating the 2 columns (=CONCAT(A2;" ";B2) ) and using that column as a label, it does the trick.

Find attached sample