Hi CodeTackler,
The change Max made to MovieSceneEventTrack.cpp was to add this from lines 47 to 54:
// Don't allow events to fire when playback is in a stopped state. This can occur when stopping
// playback and returning the current position to the start of playback. It's not desireable to have
// all the events from the last playback position to the start of playback be fired.
if (Player.GetPlaybackStatus() == EMovieScenePlayerStatus::Stopped)
{
return;
}