\FS[X] BEING DUMB

Back at it again having another issue that annoys me half to death.
The text command "\FS" only works for me SOMETIMES.
Some of my class skill type names are too long to be displayed, so I tried using the font size text code to reduce it down to a displayable level as shown here:



HOWEVER, in game, only one of these seems to display correctly, and the OTHER one includes the "\FS" in the skill type name for some dumb reason:


Is this just the RPG Maker being stupid?
Or am I genuinely doing something wrong here?