Instrument name font variations?

I enjoy MuseScore tremendously! Congratulations to the team that puts this together! I have a question, when putting in a score for a concert band, most of the instrument names come out the same size, but occasionally, some instrument names come out larger for some odd reason. I have tried to figure out how to fix this, but have not been able to do this. I have attached a screen shot so you can see that "Bb Trumpet" is larger than the other instruments. I appreciate any help!