I tried searching briefly and didn’t see anyone else mention this. Perhaps I’m the only one experiencing this graphical glitch? The actual final effect appears to do what it’s supposed to, it’s just the “preview” while dragging.
You can see right away that the preview notes jump octaves, even while I’m on the original stave, and then once I start moving to different systems, it goes completely haywire with the orange selection rectangle, making it look like it’s going to appear somewhere all over the previous page, and the note previews start showing very strange pitches, creating intervals that never existed before. But once I release, it moves the content exactly as it’s supposed to.