Ai mode sometimes wrong, and rules have changed recently, a lot of them, there were 3 substitutes for years, max, now it is 5, so things do change, it is offside, as i have watched

Offside (Deliberate Play)

A player in an offside position becomes "onside" if an opponent deliberately plays the ball. Intent is objectively judged on whether the defender had time and control. Indicators of a deliberate play include: [1]

• The ball traveled from a distance and the player had a clear view.
• The ball was not moving quickly.
• The player had time to coordinate their body movement, rather than making an instinctive lunge or reflex stretc