System brackets and braces quirk

First enclose a group of instruments with a system bracket, next add a brace to one of the sub groups, and then add another brace to a different subgroup and the braces go out of alignment. I haven't found a way to move the braces yet. Is this a bug? Attached are a couple of examples. This function is needed when rendering some older classical score that use a combination of brackets and braces.
Thanks