I was rebuilding a sample font slide/song; just to make sure I have selected the correct font. Basically entered text, select all to assign Consolas, then changed the "Sample song lyrics" to each font and set bold/underline as shown.

Before save:



After save, extra leading space on each line except first:

This was fixed in 1.9 build. While recreating it noticed Ctrl-U doesn't underline; Ctrl-B and Ctrl-I work as expected.