Michy Batshuayi crumpled to the floor on 18 minutes following the slightest of contacts from Brighton defender Tariq Lamptey after Andros Townsend's cross into the box.
Referee Stuart Atwell pointed to the spot and VAR backed the decision after a brief check. Wilfried Zaha easily converted from the spot to hand Palace a 1-0 lead.
Brighton pushed forward after the break and deservedly levelled late on when Alexis Mac Allister came off the bench to net his first Premier League goal.
Batshuayi also had a second half strike disallowed for a narrow offside call.
Scroll down and click through to see who shone and who struggled for Graham Potter's men.
Brighton pushed forward after the break and deservedly levelled late on when Alexis Mac Allister came off the bench to net his first Premier League goal.