Hey there,
What you guys are reporting as displaying for projected points for Round 3 of the tournament, as well as why you couldn't make changes prior to Round 4 starting, are based on information coming to us from our data provider.
Because the third round ended and the fourth round began on the same day, the live stats feed stopped providing projected points for Round 3 and only for Round 4 at that point.
However, the actual award of points does not take place until our overnight system update, when scoring is made official in the game.
As for being unable to edit your roster, it depends on when our data provider tells our system that Round 3 is over, and when Round 4 will start.
Once this data has been received from our data provider (generally 10-15 minutes following its announcement), we will open up the deadline, from the time we receive the new tee time until 5 minutes prior to that scheduled tee time, to allow you to make any last-minute adjustments.
Since the time from which tee time data is received to the scheduled tee time is relatively short, your window for editing your lineup in the event of delays is relatively small.
This Help article details our policy on delayed rounds in more detail:
Delayed or suspended rounds in Fantasy Golf
I hope this answers your question.