Note Displays as Wrong Pitch

This is the kind of thing that happens if you accidently double click a note instead of a single click. If you then try to move it, the note will move, but it's pitch and name will not change. Double click it again, drag it the pitch it says then move it where you want properly. Or delete it and reenter.

Dragging is likely the cause of the problem - that's never a recommended thing to do to a note. To change pitch, the cursor keys are the much more precise method. As mentioned, dragging might change pitch, or it might apply a manual offset to the position of the note, depending on how exactly you start the drag. To fix the error after the fact, click the problem note and hit Ctrl+R.

If you need further assistance, please attach the actual score - there is little we can do but guess given only a picture (although in this case I suspect my guess is probably correct).