Drag and Drop doesn't work when held over a note.
When trying to add a key signature or page break, etc. by Drag and drop, if one is hovering over "black ink" of sorts, then it will not succeed in applying the change. Expected behavior is it just working when I drag it to the correct measure regardless of where I have my mouse in that spaced area. See vid for demo:
Using prerelease version 0.9.6.