MuseScoreNightly-2018-06-06-1515-master-5182e97 - brackets
I gave the nightly build a try recently and detected an odd behavior. I wanted a bracket over all 5 voices. It is possible to expand the bracket to cover all voices. But after saving the score the bracket only cover the first three voices. I have reduced the score to the first line and still the finding holds for the reduced score.