I have a UBD-K8500 and I recently tried to play a regular (non-4k) blu-ray. It reads the disk and plays the menu, but when I hit play movie from the menu, it looks like the movie is going to start but the menu pops back up. The firmware is up to date on the player and the blu-ray plays fine in other players. I even tried resetting the player and nothing seems to work. Any ideas?
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