This is a PSA for anyone who purchased House of the Dragons. I exchanged my UHD Bluray set of House of the Dragon 3 times, with a malfunctioning Disc 3. It was the metal case version, but when I found out that Best Buy was hiding the regular case version in the back, I went ahead and swapped it for that and it worked perfectly.
After checking some of the online reviews, it seems this is a common issue for a lot of people who bought the special metal case edition, failures on Disc 3.
So if you're googling around to find out why this is happening to you and you land here, go return that copy and do not waste your time exchanging it. Find the regular version. Clearly the quality control team on the metal case version called in sick or something.