I've noticed a bug with SMN and SCH(and probably ACN) when being in the process of the summon animation and entering a cutscene(i.e. when in a dungeon, etc.) where the character model comes out of the cutscene with the quill still in their hand.
This bug is purely aesthetic and does not affect the gameplay whatsoever, but is still a visual issue.
This is the best screenshot I could get of it: here
Again, this isn't a huge issue, just something that I hadn't seen reported.