If players are nearby one another traffic disappears in the replay/ photo/ editor mode. Very inconsistent, don't think it used to be like this a year or so back. Stopped making videos because of it.
Settings are all default in the modes so traffic isn't turned off or anything. I do have more footage if you need any, would be great if fixed as when recording currently in normal gameplay I'd be swerving having close calls with traffic, then when I go into the editor it's just empty streets!
Traffic in the video, 4 cars in front of me, then there's 2 in photo mode, return to free mode, they eventually spawn in. Then 4 cars behind us turns in 0 cars when my friend went into photo mode
Here's some extra footage side by side comparison. One gameplay, and one of the replay of that gameplay, notice there's no traffic cars in the replay, yet as soon as my friend crashes into a traffic car (at 12 seconds) those one's spawn in (but on rewind it disappears until hit again)