Continuity mistake: At one point when Lee Byeong-chan is talking into a video camera the video camera battery level indicator shows 29%. When the view changes then switches back a few seconds later, it's at 22%.
Episode #1.9 - S1-E9
Continuity mistake: Look at Alicent's hands when Lord Beesbury starts to object to the plan to usurp the throne from Rhaenyra. In the initial shot, her hands are on the table but not in the next. (00:06:40)