[solved] Lyrics font size change is only applied to 2nd and 3rd row

I want to globally change the font size of my lyrics from 11pts to 13pts, in both even and odd lines.
Using Style > Text Styles > Lyrics Odd Lines I can change the size, but it is only applied to the 3rd line, not the 1st line. Strangely, the blue color is applied to both the 1st and 3rd lines....

What am I doing wrong? Could it be that some spacing setting restricts the font size in the first line?

This is the affected file: removed

Update: Thanks to Jojo-Schmitz for pointing me to the solution in the German forum: in the Inspector, a custom font size was defined. After resetting to the document defaults, everything is now working as expected.

Thanks a lot!