I had that happen with GOT season 8 E3. Would freeze up in the battle scene. Long story short, it was the disc. The little freeze up cause me to go through like 4 Sony X700's, two LG 4K players. I did like what you did, I played GOT S8,E3 on just reg blu-ray didn't freeze up. So make sure, you may have to try out another disc. I should've done that from jump instead of 6 different 4K players.