The bloopers in the series and movies are part of pop culture, and now it is House of the Dragon the one that presents an error, since the green screen played a trick on them in chapter three.
Yes: King Viserys’s fingers, which had to be removed earlier in the season due to his illness, were suddenly back in all their green-screen glory when he handed that messenger a scroll.
— Sarah Capps (@SarahC_821) September 5, 2022
The error is shown at minute 43:48 of the series.
However, it is not the first time that a blooper has occurred in the Game of Thrones saga, since in the original GOT there was a lot of controversy over a glass of starbucks which came out in one episode.
More than a cup is actually a paper cup, complete with a modern plastic lid, and can be seen on a table in front of Daenerys, approximately 17 minutes after the start of the episode, as the Mother of Dragons stares. in Jon Snow and Tormund Giantsbane celebrating victory over the White Walkers.