Drumset Notation Bug
1) Choose drumset as instrument
2) Enter notation mode (N)
3) Select or enter a note from the bar at the bottom with your mouse (next to edit drumkit)
4) Press "ESC"
5) Write a note with keyboard or mouse
Now you will see with step 5 that your note will always be the one you selected/entered at step 3. Entering more notes by keyboard works fine after that. But press escape or edit a new bar and your first note will be the selected one from step 3.