I bought a refurb M5II in July, so I only have a month or so of warranty coverage left. When I reviewed the photos from a recent hunting trip to Eastern Oregon, I found a few pics from one of my Milky Way sessions with some weirdness. Take a look- note the purple edges on one and the banding on the other- both taken at 25 seconds, f1.8, and ISO 1600 with the 8mmFE. The problem is visible on both the jpeg and RAW exposures. Not all of the shots from that night have issues, and none of my shots from two other nights (or any day time shots) exhibit problems. Any explanations of what we're seeing? Should I be worried? I'm otherwise happy with the camera as a second body to my M1, especially as the long exposure performance is better. That said, if this is sign of things to come, maybe I should exchange it.