Was out flying this morning around Dublin and noticed that while moving forward the horizon began a gradual tilt. When releasing the stick it would reset itself. I've searched around but don't see anything specific to the Litchi app. I didn't have a map cashed in the DJI app or I would've given that a shot. Basically I kept adjusting it and then when hovering or near hovering, it would over correct. I don't remember ever having this issue before.