That was two separate incidents of mistaken bellendery.
It was the Rochdale game where Greer (correctly) got his marching orders and the ref (incorrectly) gave a consequent penalty.
The Bournemouth game was where the linesman convinced the referee (who had correctly called a free-kick, though...
a) If we're talking about the same passage of play (no idea, though us having the ball was a rarity), I believed a Brighton player had come back from an offside position (when the pass was made) to receive the ball when in a not-offside position.