Hi,
I'd previously replied that there was not a way to fix this currently. There is a way to work around it, though, but it will affect the performance of the file slightly, but at least your sheet music will look right
The current problem occurs only when adding grace notes that borrow time from the right. To make the notes line up properly, delete the current grace notes, and then re-enter them, making sure that the "Grace note, borrowing time from the left" button is on. The notation will then line up properly, although it will sound slightly different than the other way round when playing the file back. The problem with grace notes borrowing time from the right is slated for fixing.
Hope this helps!
Sherry