Piano staves fair apart

While working on this cross stave piano notation the staves suddenly widened drastically. How does one correct this?

We believe this problem is caused by a bug concerning the dynamics between the staves, which we have fixed since the initial release. My hope is that you won’t see this behaviour in the first post-release update. In the meantime, you should find that closing and reopening the project eliminates the problem.

Thanks Daniel,
I did discover the ‘close and open’ solution after posting.