I do not use music in replays so unfortunately I cannot confirm whether this is new or not, but I wouldn't be surprised if it was, since I know of another replay change which has not yet been mentioned I think....
Here is an undocumented change which I cannot see being mentioned in this thread (apologies if it is here and I missed the post somehow), but I am 100% sure this is a change with V1.12 as it wasn't there before. I am producing regular vids for Youtube and as a result the difference stood out for me straight away when I updated last week.
Previously, when watching replays, at the end of the replay it would restart the replay, you would get the yellow REPLAY flashing as with the first run of the vid and the same start to the vid as before.
You also could not change the replay camera until you got past the REPLAY bit in each cycle of the vid
As an example of how the replays used to look before the update, go to 1:25 on the vid below:
Since V1.12, when you get to the end of the vid the jump cut to restart the vid does not happen and you don't get the REPLAY text appearing a second time. Instead you seem to get a revised replay restart and then you go straight into the vid.
As an example of how the vid looks now, go to 14:38 on the vid below. It's pretty easy to spot the difference when you compare one vid with the other, especially when the REPLAY text does not appear:
Tonight, I have put together a Goodwood vid for Youtube (and a vid at SS Route 5) and tested this out on both tracks and can confirm that the same change has occurred - i.e. the change is not just specific to Sierra track, but appears to be relevant to all tracks.
Sorry for the long post, but it seemed the only way to explain the change in a way that was easy for
@Johnnypenso to verify.