Percussion system bracket bug


Every time I do an instrument change for percussion I or II, the brackets change - see attached screenshots examples. I have timpani, percussion I, and percussion II. The brackets should stay consistent throughout the piece, yes?

And is there an option hidden somewhere to separate the timpani bracket from the percussion section bracket, as is normal for some 20th/21st century orchestral scores?
Screen Shot 2018-01-19 at 7.26.32 PM.png
Screen Shot 2018-01-19 at 7.26.43 PM.png
Screen Shot 2018-01-19 at 7.26.52 PM.png

more examples from the same piece
Screen Shot 2018-01-19 at 7.26.06 PM.png
Screen Shot 2018-01-19 at 7.26.16 PM.png
Screen Shot 2018-01-19 at 7.26.22 PM.png

At the moment, the bracketing and bracing is driven entirely from which instruments are active at the start of the system. We definitely plan to add more flexibility in this area in the future, but I’m afraid there’s nothing you can do to influence this in the current version.