Stronghold - S9-E14
Continuity mistake: Season 9, episode 14 "Stronghold": When Bratac has cleared the gate in his alkesh, there is a shot of the gate from nearly side on. There is no wormhole, despite the SGC dialing it less than a minute before.
Stronghold - S9-E14
Revealing mistake: Just after Sam shouts to Mitchell to wait for back up, there is a side shot of a soldier firing a machine gun. There are cases going into the gun without the actual bullet in them, showing they are blanks.
Answer: While the series was undeniably successful, filming it is a long process, taking many months of often long days. Anderson, after several years of doing this, wished to spend more time with his young daughter, who he felt he was neglecting, and requested that his role in the series be scaled back. Ultimately, he decided to leave the main cast altogether and only make occasional guest appearances.
Tailkinker ★