Hey all, we have had our mavic pro for a few years but only use it occasionally. We recently noticed spots on the video. I tried to clean the outside of lens but didn’t work. Closer inspection reveals what looks like dust, water or air bubbles under the lens. See attached images; one is of the artifacts on the lens, and the other is the resulting image. Is there an easy fix for this, or do I need to send to Mavic (which of course was their recommendation)? Thanks for your advice.