Greening delay at end of race
Maybe if it was a very close finish , you greened out when the market was opened for a photo , i didnt see the race or the market , if you were watching a tv feed these have a longer delay than the 1 second inplay delay, so even as the race finishes on tv , the market is few seconds ahead therefore suspending and reopening for a photo finish , this is probably when you greened out, I cant say for sure as didnt see the actual race.