Checking the daily challenge recording, I noticed that the recording stands still for a long time before the player starts the round. The whole recording is a lot over 3 minutes, which is the DC round time.
I presume the recording starts right after the player completes the previous round, but if they do not start the new one right away - the recording shows no activity.
It is not great for review, and I presume it creates a lot larger files than it needs to.
I sometimes leave rounds for hours later, and this means there would be a very long recording of an idle round.